Laser Diodes, Laser Modules

Image Part Number Description / PDF Quantity Rfq
VLM-635-03 LPA

VLM-635-03 LPA

Quarton, Inc.

LASER DIODE 635NM 2.5MW 7MM DIA

279

TPGEW1S09H

TPGEW1S09H

Excelitas Technologies

LASER DIODE 905NM 70W RADIAL

207

015283

015283

Excelitas Technologies

LASER MODULE 405NM 200MW

0

VLM-520-37 LPA

VLM-520-37 LPA

Quarton, Inc.

LASER DIODE 520NM 5MW MODULE

0

VOL7805I

VOL7805I

US-Lasers, Inc.

LASER DIODE 780NM 4.8MW 10.4MM

2

VLM-520-53 LPA

VLM-520-53 LPA

Quarton, Inc.

LASER DIODE 520NM 4MW 10.5MM DIA

52

M8505I

M8505I

US-Lasers, Inc.

LASER DIODE 850NM 5MW 10.4MM DIA

17

015300

015300

Excelitas Technologies

LASER MODULE 505NM 50MW

1

PLPVQ 940A

PLPVQ 940A

OSRAM Opto Semiconductors, Inc.

LASER DIODE

0

OPV322

OPV322

TT Electronics / Optek Technology

LASER DIODE 850NM 1.5MW PILL

192

IF-HN15M

IF-HN15M

Industrial Fiber Optics, Inc.

LASER DIODE 633NM 1.5MW HOUSED

0

VLM-520-51 LPA

VLM-520-51 LPA

Quarton, Inc.

LASER DIODE 520NM 4MW 8MM DIA

1

015286

015286

Excelitas Technologies

LASER MODULE 488NM 20MW

1

015284

015284

Excelitas Technologies

LASER MODULE 445NM 75MW

1

VOL6355I

VOL6355I

US-Lasers, Inc.

LASER DIODE 635NM 4.8MW 10.4MM

0

015296

015296

Excelitas Technologies

LASER MODULE 660NM 80MW

1

VLM-650-27 LPT-10

VLM-650-27 LPT-10

Quarton, Inc.

RED LINE LASER MODULE 650 NM

8

VLM-520-73 LPT

VLM-520-73 LPT

Quarton, Inc.

DOT LASER MODULE CLASS II 520NM

40

M7805I

M7805I

US-Lasers, Inc.

LASER DIODE 780NM 5MW 10.4MM DIA

9

VLM-635-01 LPT

VLM-635-01 LPT

Quarton, Inc.

LASER DIODE 635NM 1MW 10.4MM DIA

8

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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