Laser Diodes, Laser Modules

Image Part Number Description / PDF Quantity Rfq
015293

015293

Excelitas Technologies

LASER MODULE 637NM 100MW

1

LA LS56CYSM1

LA LS56CYSM1

DComponents

CYAN LASER DIODE, 488NM, SINGLEM

0

M6355I

M6355I

US-Lasers, Inc.

LASER DIODE 635NM 5MW 10.4MM DIA

14

OPV314AT

OPV314AT

TT Electronics / Optek Technology

LASER DIODE 850NM 1.4MW PANEL ST

0

VLM-520-52 LPB

VLM-520-52 LPB

Quarton, Inc.

LASER DIODE 520NM 8.5MM DIA

9

LA LS56HRSM3

LA LS56HRSM3

DComponents

HYPER RED LASER DIODE, 650NM, SI

0

LA LS56DRSM1

LA LS56DRSM1

DComponents

DEEP RED LASER DIODE, 638NM, SIN

0

159353940B1300

159353940B1300

Würth Elektronik Midcom

WL-VCSL VERTICAL CAVITY SURFACE

498

MM650-5 W/SPRING

MM650-5 W/SPRING

US-Lasers, Inc.

LASER DIODE 650NM 6.4MM DIA

0

VLM-650-12 LPT

VLM-650-12 LPT

Quarton, Inc.

LASER DIODE 650NM 2.5MW 10.5MM

28

STM81004G

STM81004G

IR (Infineon Technologies)

LASER DIODE, 1590NM

2

LA LS56HRSM2

LA LS56HRSM2

DComponents

HYPER RED LASER DIODE, 650NM, SI

0

OPV380

OPV380

TT Electronics / Optek Technology

LASER DIODE 850NM 1.5MW RAD SIDE

145

M8085I

M8085I

US-Lasers, Inc.

LASER DIODE 808NM 5MW 10.4MM DIA

8

VLM-635-63 LPT-100

VLM-635-63 LPT-100

Quarton, Inc.

LASER DOT CII 635NM 100MM FOCUS

8

VLM-635-01 LPA

VLM-635-01 LPA

Quarton, Inc.

LASER DIODE 635NM 3MW 10.4MM DIA

221

VLM-650-30 LPT10 (60O)

VLM-650-30 LPT10 (60O)

Quarton, Inc.

LASER DIODE 650NM 5MW 10MM DIA

2

VLM-650-03 LPA

VLM-650-03 LPA

Quarton, Inc.

LASER DIODE 650NM 2.5MW

1287

RLD84PZJ2-00A

RLD84PZJ2-00A

ROHM Semiconductor

840NM INVISIBLE SINGLE MODE LASE

22

LA LS56SGCL1

LA LS56SGCL1

DComponents

STANDARD GREEN LASER DIODE, 520N

748

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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