8500nm High power QCL Laser diode

LPLD-FP-8.5-1W-HHL is a single-transverse-mode, multi-longitudinal-mode quantum cascade laser (QCL) product that can operate under continuous wave (CW) mode at room temperature (25℃), with an output laser power of over 1W and a central wavelength of 8.5 ± 0.3 μm. It adopts the HHL package, integrated with a collimating lens, a negative temperature coefficient thermistor (NTC-10k), and a thermoelectric cooler (TEC). The laser is hermetically sealed with dry nitrogen, and its optical output window is an uncoated barium fluoride (BaF₂) window.

Name	Model	Description	Parameter	Price
8500nm High power QCL Laser diode [PDF] [RFQ]	LPLD-FP-8.5-1W-HHL (Stock NO. Not entered)	Centre Wavelength 8500nm, Output power 1W, HHL package	Central wavelength: 8500nm Output power: 1W Lead Time: 3-4 weeks	[Please inquire] Call us

Name

Model

Description

Parameter

Price

8500nm High power QCL Laser diode [PDF] [RFQ]

LPLD-FP-8.5-1W-HHL
(Stock NO. Not entered)

Centre Wavelength 8500nm, Output power 1W, HHL package

Central wavelength: 8500nm

Output power: 1W

Lead Time: 3-4 weeks

[Please inquire]

Call us

Parameter

Key Parameter

Parameter Category	Parameter	Value	Value	Value
General Parameters	Dimensions	55 mm × 40mm × 22 mm
	Weight	< 160 g
Electrical Parameters	Operating Mode	DC Driven	Operating Temperature	25 ℃
	Threshold	Current Ith = 0.78 A	Voltage Vth = 8.66 V
	Operating Point	Current Ia = 1.70 A	Voltage Va = 9.92 V	Power Pa = 1.05 W
	Intermediate States	Current I = 1.10 A	Voltage V = 9.07 V	Power P = 0.38 W
		Current I = 1.20 A	Voltage V = 9.22 V	Power P = 0.48 W
		Current I = 1.30 A	Voltage V = 9.35 V	Power P = 0.61 W
Optical Parameters	Wavelength Range	8.309 μm ~ 8.529 μm
General Parameters	Dimensions	55 mm × 40 mm × 22 mm
	Weight	< 160 g
Electrical Parameters	Operating Mode	DC Driven	Operating Temperature	25 ℃

Relevant Performance Curves

Pin definition

Pin	Function	Pin	Function
1	TEC−	5	QCL+
2	QCL−	6	Reserved
3	NTC	7	Reserved
4	NTC	8	TEC+

1.Before use, ensure the QCL is securely fastened to a heat-dissipating workbench, and apply an appropriate amount of thermal grease between the QCL and the heat sink.

2.During use, confirm the wiring is correct; additionally, ensure there is no short circuit between the pins and no exposed metal at the wiring connections.

Precautions

1. During storage and use, ensure anti-static protection measures are strictly implemented.

2. Invisible high-power collimated laser beams may cause permanent damage to the human body. Strict protection measures must be taken during the laser beam collimation process, and awareness of protection should be strengthened.

3. The QCL is driven by a DC current source. The current must not exceed 1.70 A; exceeding this value may reduce the service life or even burn out the QCL.

4. Some current sources are not equipped with surge protection. Please disconnect the QCL during the power-on and power-off processes.

8500nm High power QCL Laser diode

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