Laser Diodes, Laser Modules

Image Part Number Description / PDF Quantity Rfq
VLM-650-01G LPA

VLM-650-01G LPA

Quarton, Inc.

LASER DIODE 650NM 2.5MW 10.5MM

6

VLM-635-63 LPO-200

VLM-635-63 LPO-200

Quarton, Inc.

LASER DOT CI 635NM 200MM FOCUS

23

D6505I

D6505I

US-Lasers, Inc.

LASER DIODE 650NM 5MW TO18

0

VLM-635-63 LPT-200

VLM-635-63 LPT-200

Quarton, Inc.

LASER DOT CII 635NM 200MM FOCUS

8

VLM-650-02G LPA20

VLM-650-02G LPA20

Quarton, Inc.

RED LASER MODULE 650 NM 12 MW

4

VLM-520-03 LPT

VLM-520-03 LPT

Quarton, Inc.

LASER DIODE 520NM 1MW 7MM DIA

72

MM6355I

MM6355I

US-Lasers, Inc.

LASER DIODE 635NM 5MW 6.4MM DIA

0

SPL PL90

SPL PL90

OSRAM Opto Semiconductors, Inc.

LASER DIODE 905NM 30W RADIAL

431

RLD85NZJ4-00A

RLD85NZJ4-00A

ROHM Semiconductor

850NM INVISIBLE SINGLE MODE LASE

0

IF-HN08M

IF-HN08M

Industrial Fiber Optics, Inc.

LASER DIODE 633NM 0.8MW HOUSED

0

VOL6505I

VOL6505I

US-Lasers, Inc.

LASER DIODE 650NM 4.8MW 10.4MM

5

VLM-650-04-SPA

VLM-650-04-SPA

Quarton, Inc.

LASER DIODE 650NM 2.5MW

10

OPV314YBT

OPV314YBT

TT Electronics / Optek Technology

LASER DIODE 850NM PANEL MOUNT ST

114

IF-HN05

IF-HN05

Industrial Fiber Optics, Inc.

LASER DIODE 633NM 0.5MW HOUSED

0

VLM-520-01 LPA

VLM-520-01 LPA

Quarton, Inc.

LASER DIODE 520NM 4MW 10.4MM DIA

21

VLM-780-01 LPT

VLM-780-01 LPT

Quarton, Inc.

LASER DIODE 780NM 1MW 10.5MM DIA

6

LQPGAU1S03

LQPGAU1S03

Excelitas Technologies

EPI3 PULSE LASER 905NM 20W

108

VLM-650-04 LPA

VLM-650-04 LPA

Quarton, Inc.

LASER DIODE 650NM 2.5MW 6.5MM

0

VLM-850-03 LPA

VLM-850-03 LPA

Quarton, Inc.

LASER DIODE 850NM 3MW 7MM DIA

21

VLM-650-02G LPT

VLM-650-02G LPT

Quarton, Inc.

LASER DIODE 650NM 1MW 10.5MM DIA

4

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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