4.57um 20mW DFB-CW QCL Continuous Wave Quantum Cascade Laser

4.57um 20mW DFB-CW QCL Continuous Wave Quantum Cascade Laser

QCL is a type of semiconductor laser that emits in the mid-infrared region (from 4 um to 10um).Due to its emission principle being completely different from that of conventional laser diodes (LD),QCL has attracted great attention as an innovative solution for mid-infrared applications such as trace gas analysis in environmental monitoring.The quantum cascade laser adopts SPC (Single Phonon Continuum) depopulation and DFB (Distributed Feedback) structure,enabling continuous-wave mid-infrared laser emission at room temperature.By controlling the operating temperature of the chip using a Peltier element integrated in the HHL package,it is possible to tune the emission wavelength without mode hopping while maintaining longitudinal single-mode operation.

Product features：Continuous wave output; DFB single-mode characteristics; precise temperature control; low-noise driving; industrial-grade package

Part Number：MP-QCL-4570-DFB-20

Application area：Gas Sensing | Medical Diagnostics | Defense and Security | Environmental Monitoring | Semiconductor Metrology

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Main parameters
General Parameters
Optional Configurations
Downloads

Main parameters

Core parameters

Central Wavelength Output Power

4.57um 20 mW

Dimension Drawing

General Parameters

Model Parameters

Parameter	Specification
Type	DFB-CW Type
Typical Peak Emission Wavelength	4.57 μm
Tuning Range Min.	±1.0 cm⁻¹
Min. Output Power	20 mW
Max. Laser Threshold Current	1 A
Min. Side Mode Suppression Ratio (SMSR)	25 dB
Package	HHL

Typical Characteristics

General Parameters

Thermistor Configuration (Schematic Diagram)

Typical Transmittance Curve of the Window

DFB-CW QCL Continuous Wave Quantum Cascade Laser Model List

HHL Package

Wavelength	Wavenumber	Target gases
4.33 μm	2310 cm⁻¹	CO₂, CO₂ isotope
4.53 μm	2209 cm⁻¹	N₂O
4.57 μm	2190 cm⁻¹	N₂O, CO
5.26 μm	1900 cm⁻¹	NO
6.13 μm	1631 cm⁻¹	NO₂
7.18 μm	1392 cm⁻¹	SO₃
7.39 μm	1354 cm⁻¹	SO₂
7.73 μm	1294 cm⁻¹	CH₄

Optional Configurations

Downloads

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Product title: 4.57um 20mW DFB-CW QCL Continuous Wave Quantum Cascade Laser

Product link: https://www.idealphotonics.com/product/detail/1346.html

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