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Laser Diode

635nm 638nm 650nm and 660nm 660nm 670nm 685nm Dot /Line/Cross Line

Our infrared laser diode series covers wavelengths from 780 nm to 980 nm, with output powers ranging from milliwatts to over 12 watts. Available in compact Ø5.6 mm and high-power Ø9 mm packages, these diodes offer both single-mode and multi-mode options to suit precision alignment, night vision illumination, machine vision, and medical aesthetics applications. Designed for reliable performance across wide temperature ranges, they provide stable, efficient infrared output for demanding industrial and commercial systems.

Product Overview

As a premier manufacturer and supplier of precision optical components, we present this high-performance Red Laser Diode engineered for demanding industrial environments. Crafted with meticulous attention to semiconductor integrity, it delivers unparalleled beam stability and operational longevity for your advanced instrumentation.

  • Emits highly visible wavelengths ranging from 633nm to 670nm.

  • Available in robust TO-can and pre-aligned pigtailed packaging.

  • Engineered for exceptional thermal stability and long-term reliability.

Product Description

The Red Laser Diode represents the pinnacle of modern semiconductor optical engineering, designed to seamlessly elevate your precision instrumentation and sensing equipment. Emitting a piercing, highly visible crimson beam, this diode offers exceptional spatial coherence that translates directly into sharper imaging, cleaner signal transmission, and more accurate distance calculations for your end-user devices. The physical construction features a meticulously sealed, gold-plated or robust metallic housing that feels substantial in the hand and is engineered to exacting microscopic tolerances. When integrated into your systems, the diode operates with silent, unwavering efficiency, producing a stable continuous wave or high-intensity pulsed output without the erratic flickering or power degradation associated with inferior components. By utilizing advanced epitaxial growth techniques, the internal semiconductor architecture minimizes microscopic lattice defects, resulting in a pristine beam profile that significantly reduces the need for complex, secondary corrective optics. This means your engineering teams can achieve tighter focus spots and superior optical alignment, ultimately enhancing the operational reliability of your assemblies and providing your clients with equipment that performs flawlessly in the most demanding field conditions.

Product Specifications

Parameter

Specification

Wavelength

633nm - 670nm (Typical: 635nm, 638nm, 650nm, 660nm)

Output Power

1mW - 200mW (Continuous Wave CW) / Up to 400mW (Pulsed)

Operating Voltage

2.2V - 5.2V DC

Operating Current

20mA - 400mA (Dependent on specific power output)

Spatial Mode

Single Mode / Multi-mode / Fiber-Coupled

Package Type

φ5.6mm CAN, TO-5 9mm, Pigtailed Module

Operating Temperature

-10°C to +80°C (Select industrial models support up to -40°C)

Laser Class

Class II, Class IIIa, Class IIIb

Expected Lifetime

MTTF > 10,000 hours

Connector Type

Bare Wire / FC/PC (For fiber-coupled models)

Key Features & Highlights

Integrating this sophisticated diode into your optical architecture provides immediate, measurable enhancements to system performance and operational longevity. The meticulous craftsmanship ensures that every unit meets rigorous industrial standards, empowering your production lines to deliver superior technology.

  • Precision Beam Quality: Emits a highly concentrated optical profile, significantly reducing divergence and improving target illumination accuracy for critical scanning tasks.

  • Versatile Power Output: Ranging from a subtle 1mW for sensitive biological scanning up to a commanding 400mW pulsed output for dense material detection and ranging.

  • Ruggedized Architecture: Encased in hermetically sealed metallic packages that actively resist environmental contaminants, moisture ingress, and mechanical shock during deployment.

  • Seamless Fiber Coupling: Available with meticulously aligned FC/PC connectors, ensuring maximum light transmission into optical fibers without the need for manual alignment.

Core Performance & Optical Specs

Achieving absolute precision in advanced optical systems requires a light source that maintains strict wavelength fidelity. This diode is engineered to deliver exceptional spectral purity, ensuring your sensing, measuring, and analytical equipment operates at peak accuracy without signal drift.

  • High-Visibility Wavelengths: The 635nm and 638nm variants offer a brilliant, high-contrast beam perfectly suited for alignment and leveling tasks where human visual perception is critical.

  • High-Power Density: The 650nm and 660nm configurations provide robust energy output, ideal for deep-penetration scanning, material analysis, and high-speed optical reading.

  • Single-Mode Purity: Delivers a pristine, low-divergence beam that is absolutely essential for high-resolution confocal microscopy and precise spatial filtering applications.

  • Multi-Mode Efficiency: Offers superior power scaling capabilities, providing the necessary photon density for demanding industrial illumination and broad-area sensing requirements.

Packaging & Integration

Time-to-market is a critical factor in hardware development and manufacturing. We have physically structured these diodes to eliminate integration bottlenecks, allowing your engineering teams to seamlessly drop them into existing schematics with minimal friction and reduced secondary development costs.

  • Industry-Standard Footprints: Housed in universally recognized φ5.6mm CAN and TO-5 9mm formats, eliminating the need for custom mounting brackets or redesigned PCB layouts.

  • Plug-and-Play Pigtails: The pigtailed module variants come pre-aligned with high-grade optical fibers, bypassing the tedious and costly process of active alignment on your production floor.

  • Integrated Drive Circuitry: Select models feature built-in drivers that accept a wide input voltage range, drastically simplifying your power supply architecture and reducing component count.

  • Streamlined Prototyping: The standardized pinouts and robust, easily solderable lead wires ensure secure connections and rapid breadboarding during the crucial R&D phase.

Reliability & Durability

Equipment failure in the field leads to costly downtime, maintenance overhead, and reputational damage. This diode is heavily fortified against extreme environmental stressors, guaranteeing continuous, stable operation in the most unforgiving industrial and outdoor landscapes.

  • Extended Lifespan: Engineered for a Mean Time To Failure (MTTF) exceeding 10,000 hours, drastically reducing maintenance cycles and replacement costs for your end-users.

  • Extreme Temperature Tolerance: Capable of flawless operation from a freezing -40°C up to a sweltering +80°C, making it ideal for aerospace, automotive, and heavy-duty outdoor deployment.

  • Integrated Photodiode (PD): High-end configurations include a built-in monitoring PD, allowing your control systems to establish a precise closed-loop feedback mechanism for unwavering power stability.

  • Thermal Shock Resistance: The robust internal wire bonding and carefully selected substrate materials prevent catastrophic failure during rapid temperature fluctuations and mechanical vibrations.

Application Versatility

A truly superior component must adapt to a multitude of technological ecosystems. The highly versatile nature of this laser diode makes it the foundational light source across a diverse spectrum of cutting-edge industries, providing targeted solutions for complex engineering challenges.

  • Advanced Machine Vision: Provides the high-contrast, uniform illumination required for automated quality inspection, defect recognition, and robotic guidance systems.

  • Precision Laser Ranging: Delivers the rapid pulse capabilities necessary for accurate Time-of-Flight (ToF) calculations in surveying equipment and autonomous navigation modules.

  • Biomedical Instrumentation: Offers the strict spectral stability essential for flow cytometry, DNA sequencing, and non-invasive diagnostic equipment where accuracy is paramount.

  • Industrial Alignment: The sharp, highly visible beam ensures absolute accuracy in construction leveling, material cutting, and large-scale structural positioning.

  • Optical Communications: Fiber-coupled variants serve as highly reliable transmission sources for short-haul data networks and secure, interference-free optical links.

Safety & Compliance

Navigating international regulatory frameworks can be a complex and time-consuming endeavor. We ensure that every diode manufactured adheres to the strictest global safety and environmental protocols, safeguarding your supply chain and simplifying your final product certification processes.

  • Clear Laser Classification: Strictly categorized into Class II, Class IIIa, and Class IIIb, allowing your safety engineers to implement appropriate protective measures without ambiguity.

  • FDA Performance Standards: Fully compliant with stringent federal regulations, ensuring your final integrated devices can be legally and smoothly distributed in the North American market.

  • RoHS and REACH Certified: Manufactured entirely without hazardous substances, aligning with global environmental directives and supporting your corporate sustainability goals.

  • Comprehensive Documentation: Every shipment is accompanied by detailed Certificates of Conformity (CoC) and testing reports, streamlining your inbound quality control and customs clearance.

Power Efficiency & Thermal Management

Energy consumption and heat dissipation are primary concerns in modern electronics design. This diode is meticulously optimized for maximum electro-optical conversion, minimizing wasted thermal energy and extending the operational life of battery-powered and portable instruments.

  • High Conversion Efficiency: Transforms electrical input into optical output with minimal loss, significantly reducing the overall power draw of your system architecture.

  • Low Operating Current: Functions reliably on currents as low as 20mA, making it exceptionally well-suited for portable, handheld diagnostic tools where battery life is critical.

  • Reduced Thermal Footprint: The minimal heat generation allows your designers to utilize smaller, lighter heat sinks, freeing up valuable internal real estate for other components.

  • Ultra-Low Standby Power: Intelligent power management capabilities ensure minimal energy drain during idle periods, significantly prolonging operational cycles in remote sensing applications.

Why Choose Us

Selecting the right component partner is as critical as the technology itself. We provide a comprehensive ecosystem of technical support, precision manufacturing, and supply chain resilience that empowers your production capabilities and protects your market delivery schedules.

  • Stringent Quality Control: Every individual diode undergoes rigorous parametric testing, optical profiling, and burn-in procedures before dispatch, ensuring zero-defect deliveries to your facility.

  • Scalable Production Capacity: Whether you require a small batch for initial prototyping or high-volume continuous supply, our manufacturing lines seamlessly adapt to your procurement schedules.

  • Expert Technical Support: Our dedicated team of seasoned optical engineers is readily available to assist your R&D department with complex integration challenges and custom modifications.

  • Secure Supply Chain: We maintain robust inventory buffers and diversified raw material sourcing to protect your production lines from unexpected global disruptions and material shortages.

FAQ

Navigating the technical nuances of semiconductor lasers requires precise and accurate information. Below, we address the most critical inquiries from engineering and procurement professionals regarding the integration and performance of our diode technology.

  • Q1: How does the integrated monitoring photodiode (PD) enhance system stability?
    A1: The internal PD continuously measures the rear facet emission, providing a real-time feedback signal to your external automatic power control (APC) circuit. This active monitoring compensates for temperature fluctuations and natural aging, ensuring a constant optical output over the device's entire lifespan.

  • Q2: Can the TO-5 and φ5.6mm CAN packages be customized for specific thermal requirements?
    A2: Yes, we offer specialized base plating and customized heat sink mounts. These modifications significantly enhance thermal conductivity, allowing the diode to operate safely at the upper limits of its power rating without degrading the semiconductor junction.

  • Q3: What are the primary advantages of utilizing the fiber-coupled (pigtailed) configuration?
    A3: The pigtailed module eliminates the need for your engineers to design complex free-space alignment optics. It provides a highly stable, enclosed optical path that is completely impervious to dust and mechanical vibrations, terminating in a standard FC/PC connector for immediate, reliable integration.

  • Q4: How do you ensure the MTTF exceeds 10,000 hours in harsh industrial environments?
    A4: We utilize advanced facet passivation techniques that prevent catastrophic optical damage (COD). Combined with strict hermetic sealing and rigorous accelerated life testing (ALT) during production, this guarantees exceptional reliability even under extreme temperature cycling and high-humidity conditions.

  • Q5: Are these diodes suitable for high-frequency pulsed operation in Time-of-Flight (ToF) systems?
    A5: Absolutely. The internal semiconductor architecture is optimized for rapid carrier dynamics, allowing for nanosecond pulse widths and exceedingly high repetition rates. When driven by an appropriate high-speed circuit, it delivers the crisp, distinct optical pulses required for millimeter-accurate distance measurements.


Product Code
Diameter (mm)Wavelength(nm)Output Power(mW)Operating Temp (℃)Model
D54-6355A1Ø5.66355-10~40℃Single-mode
D55-63510A0Ø5.663510-10~50℃Single-mode
D5H6-638180A0
Ø5.6638180-10~60℃Single-mode
D54-638700K1
Ø5.6638700-10~40℃Multi-mode
D94-6381W2K0Ø96381200-10~45℃Multi-mode
D95-6381W6K0Ø96381600-10~55℃Multi-mode
D95-6382W4K0Ø96382400-10~55℃Multi-mode
D55-6505A0Ø5.66505-10~50℃Single-mode
D37-6507A0Ø3.36507-10~70℃Single-mode
D58-65010A0
Ø5.665010-40~85℃Single-mode
D5H7-65050A0Ø5.665050-10~70℃Single-mode
D56-65885K0Ø5.666085-10~60℃Single-mode
D57-660100D2Ø5.6660100-10~70℃Single-mode
D5H7-660120A0Ø5.6660120-10~70℃Single-mode
D5H6-660210A0Ø5.6660210-10~75℃Multi-mode


Note:

Contact us for tailored solutions – we’ll provide quotes within 48 hours.

※Contact our engineering team for tailored solutions! We provide:

Free technical consultation Volume production support

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