Laser Diodes, Laser Modules

Image Part Number Description / PDF Quantity Rfq
VLM-650-29 LPT

VLM-650-29 LPT

Quarton, Inc.

LASER DIODE 650NM 2MW 9MM DIA

48

LA LS56UXCM1

LA LS56UXCM1

DComponents

ULTRAVIOLET LASER DIODE, 405NM,

0

VOL8085I

VOL8085I

US-Lasers, Inc.

LASER DIODE 808NM 4.8MW 10.4MM

0

NV4V31MF-A

NV4V31MF-A

CEL (California Eastern Laboratories)

LASER DIODE 405NM 175MW 3.8MM

11

LA LS56HRCL1

LA LS56HRCL1

DComponents

HYPER RED LASER DIODE, 660NM, SI

0

015287

015287

Excelitas Technologies

LASER MODULE 488NM 40MW

1

RLD82PZJ1-00A

RLD82PZJ1-00A

ROHM Semiconductor

820NM INVISIBLE SINGLE MODE LASE

28

IF-VL08-635

IF-VL08-635

Industrial Fiber Optics, Inc.

LASER DIODE 635NM 0.75-0.9MW

0

D8505I

D8505I

US-Lasers, Inc.

LASER DIODE 850NM 5MW TO18

7

LA LS33HRCL1

LA LS33HRCL1

DComponents

HYPER RED LASER DIODE, 660NM, SI

0

IF-RL30-635

IF-RL30-635

Industrial Fiber Optics, Inc.

LASER DIODE 635NM 2.8-3.2MW

0

VLM-520-53 SPT

VLM-520-53 SPT

Quarton, Inc.

LASER DIODE 520NM 1MW 10.5MM DIA

4

VLM-650-01-SPA

VLM-650-01-SPA

Quarton, Inc.

LASER DIODE 650NM 3MW

0

VLM-520-02 LPA

VLM-520-02 LPA

Quarton, Inc.

LASER DIODE 520NM 4MW 10.5MM DIA

4

VLM-650-07 LPA

VLM-650-07 LPA

Quarton, Inc.

LASER DIODE 650NM 3MW 12.5MM DIA

1

D6355I

D6355I

US-Lasers, Inc.

LASER DIODE 635NM 5MW TO18

16

1056

1056

Adafruit

LASER DIODE 650NM 5MW 10MM DIA

0

015227

015227

Excelitas Technologies

LASER MOD INTERLOCK UNIT V2&PSU

1

TPG2EW1S09

TPG2EW1S09

Excelitas Technologies

LASER DIODE 905NM 85W RADIAL

193

LA LM56UXSH1

LA LM56UXSH1

DComponents

ULTRAVIOLET LASER DIODE, 406NM,

0

Laser Diodes, Laser Modules

1. Overview

Laser diodes (LDs) are semiconductor devices that emit coherent light through stimulated emission. Laser modules integrate LDs with optical components, drivers, and thermal management systems. These devices are critical in telecommunications, medical systems, industrial processing, and consumer electronics due to their high efficiency, compact size, and precise beam control.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Edge-Emitting Laser DiodesHigh power output, narrow spectral widthFiber optic communication, LIDAR
Vertical-Cavity Surface-Emitting Lasers (VCSELs)Low divergence beam, array scalability3D sensing, data centers
Quantum Cascade LasersTunable mid-infrared emissionGas sensing, spectroscopy
Fiber-Coupled Laser ModulesIntegrated beam shaping, wavelength stabilizationMaterial processing, medical surgery
Multi-Transverse Mode LasersHigh brightness, multimode outputLaser projection, defense systems

3. Structure and Components

Laser Diodes: Composed of an active region (quantum well structure), cladding layers, and a resonant cavity formed by cleaved facets. Electrical contacts enable current injection.

Laser Modules: Integrate LDs with:

  • Collimating optics and beam-shaping elements
  • Photodiode feedback for power stabilization
  • Thermoelectric coolers (TEC) for temperature control
  • Driver circuits with modulation capabilities

4. Key Technical Specifications

ParameterDescriptionImportance
Wavelength (nm)Emission spectrum peakDetermines material compatibility and application suitability
Output Power (mW/W)Optical power levelCritical for processing speed and transmission distance
Wall-Plug Efficiency (%)Electrical-to-optical conversion rateAffects thermal management and power consumption
Beam Quality (M )Deviatoin from ideal Gaussian beamImpacts focusing precision and coupling efficiency
Lifetime (hours)Mean time before power 10%System reliability and maintenance intervals

5. Application Fields

Telecommunications: DWDM systems, free-space optical links

Medical: Laser scalpels, photodynamic therapy devices

Industrial: Cutting/welding machines, 3D printers

Consumer Electronics: LiDAR for AR/VR, facial recognition systems

Scientific: Atomic clocks, quantum computing research

6. Leading Manufacturers & Products

ManufacturerRepresentative ProductKey Features
LumentumLD-XX-Y Series1550nm wavelength, 100mW output, telecom-grade reliability
IPG PhotonicsLM-ABC-10WSingle-mode fiber delivery, 10W output at 976nm
CoherentOBIS Flexx SeriesTunable visible/near-IR output, integrated control
Hamamatsu PhotonicsL8612 SeriesPulsed VCSEL with 940nm peak wavelength

7. Selection Guidelines

Key considerations:

  • Wavelength compatibility with target material/transmission medium
  • Required power stability over temperature variations
  • Modulation speed requirements for communication systems
  • Environmental factors (humidity, vibration, operating temperature)
  • Form factor constraints and cooling method availability

8. Industry Trends

Emerging developments include:

  • High-power single-mode fiber lasers for metal processing
  • VCSEL arrays with >50% wall-plug efficiency for LiDAR
  • Photonic integrated circuits combining LDs with modulators
  • UV and deep-IR emitting devices for advanced spectroscopy
  • AI-driven thermal management systems for extended lifetime

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