Laser Diode Chip: Spectral Width 0.1-5 nm

Component Specifications

Definition

A laser diode chip is a semiconductor device that generates coherent, monochromatic light via stimulated emission when electrically pumped. It consists of a p-n junction formed in a direct bandgap semiconductor material (typically gallium arsenide or indium phosphide based), with cleaved or etched facets forming an optical resonator. The chip produces laser emission through population inversion in the active region, with wavelengths ranging from ultraviolet to infrared depending on material composition and quantum well structures.

Working Principle

Electrical current injection creates electron-hole pairs in the active region, achieving population inversion. Photons generated through spontaneous emission stimulate further emission in the resonant cavity formed by reflective facets, producing coherent light amplification through positive feedback. The output wavelength is determined by the bandgap energy of the semiconductor materials and quantum confinement effects.

Materials

Gallium arsenide (GaAs), indium phosphide (InP), gallium nitride (GaN) substrates with aluminum gallium arsenide (AlGaAs), indium gallium arsenide phosphide (InGaAsP), or indium gallium nitride (InGaN) epitaxial layers. Gold or aluminum metallization for electrical contacts.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Wavelength	405-1650 nm
Output Power	1 mW - 10 W
Package Type	TO-can, butterfly, coaxial
Spectral Width	0.1-5 nm
Beam Divergence	10-40 degrees
Operating Voltage	1.5-3.0 V
Threshold Current	10-100 mA
Operating Temperature	-40°C to +85°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 11145, ISO 11554, IEC 60825, JIS C 6802

Parent Products

This component is used in the following industrial products

Laser Diode Assembly

A precision optical assembly containing a laser diode and associated components for generating and directing coherent light.

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Laser Diode Module

A compact electronic component that generates coherent laser light through semiconductor diode technology

View Product Details

Engineering Analysis

Risks & Mitigation

Electrostatic discharge damage
Thermal runaway
Catastrophic optical damage
Wavelength drift with temperature
Output power degradation over time

FMEA Triads

Trigger: Excessive drive current
Failure: Catastrophic optical damage at facet
Mitigation: Implement current limiting circuits and temperature monitoring with automatic shutdown

Trigger: Electrostatic discharge during handling
Failure: Immediate or latent junction damage
Mitigation: ESD-protected workstations, proper grounding, and antistatic packaging

Trigger: Poor thermal management
Failure: Thermal runaway and accelerated degradation
Mitigation: Optimize heat sink design, use thermal interface materials, and monitor junction temperature

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Wavelength tolerance ±3 nm, output power tolerance ±10%, beam divergence tolerance ±2 degrees

Test Method

L-I-V characterization (light-current-voltage), spectral analysis, far-field pattern measurement, accelerated life testing per Telcordia GR-468

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Laser Diode Chip

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

GLSUN (Guilin GLSUN Science and Tech Group Co.,Ltd)

Guangxi, CN

Also makes: Communication Network, Transceiver Module, Transmission

Listed on the company's own website · profile compiled by CNFX from public sources

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the difference between a laser diode chip and an LED chip?

Laser diode chips produce coherent, directional light through stimulated emission in a resonant cavity, while LED chips produce incoherent, omnidirectional light through spontaneous emission without optical feedback.

How long do laser diode chips typically last?

Operating lifetimes range from 10,000 to 100,000 hours depending on operating conditions, with gradual output power degradation rather than sudden failure in most applications.

What causes laser diode chip failure?

Primary failure mechanisms include catastrophic optical damage (COD) from facet overheating, electrostatic discharge (ESD) damage, solder joint fatigue, and gradual degradation of the active region materials.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Laser Diode Chip