High power laser diode stack module German Jenoptik laser bar 808nm Diode Laser Stack

Product Overview

Description

High power laser diode stack module German Jenoptik laser bar 808nm Diode Laser Stack

Model no.:JC-A11B-A300

 

Single wavelength (760nm, 808nm,1064nm optional), high power vertical stacked hair removal laser diode modules. Output power 300W, bars number up to 6.

Features

-AuSn hard-solder package, higher stability

-Higher power conversion efficiency

-Macro channel package, sealed house

-Higher reliability, longer life time

-Up to 50W QCW per Bar

-2.0mm pitch between Bars

-Up to 6-16 Bars in a single stack module

-Single or multi-wavelength 760nm, 808nm, 1064nm in a single stack module

-Active water cooling for optimized lifetime and power

-Low thermal resistance package

 

Applications

*Hair removal  

*Skin rejuvenation

 

Specifications

Optical Parameters	Typical Value	Unit
Central Wavelength	808	nm
Central Wavelength Tolerance	±15	nm
Output Power	300	W
Number of Bars	6	#
Pitch Between Bars	2	mm
Polarization Mode	TE	-
Slope Efficiency per Bar	>1.2	W/A
Fast-Axis Divergence (FWHM)	32	º
Slow-Axis Divergence (FWHM)	8	º
Wavelength Coefficient	~0.27	nm/℃
Electrical Parameters
Power Conversion Efficiency	>50	%
Threshold Current	<10	A
Operating Current	50	A
Pulse Width	400	ms
Duty Cycle	40	%
Operating Voltage per Bar	<1.9	V
Thermal Parameters
Operating Temperature Range	20-30	℃
Storage Temperature Range	0-55	℃
Cooling Type	purified water	-
Water Pressure	0.35-0.5	MPa
Water Flow	4~6	L/min

FAQ:

what’re difference about laser diodes stacks modules package:

1.Comparison between Hard solder sintering process(AuSn)and indium solder sintering process(indium):

The indium solder sintering process of diode laser bars is commonly used in market. Indium solder is prone to creep, electromigration and thermal fatigue, resulting in imperfect contact between the laser bar and the heat sink (with voids). The voids prevent heat passing downwards, creating localized heat spots, which increase the average thermal resistance of the laser components. Therefore, the laser sintering process directly affects the reliability, stability and long-term use of the lasers.

Hard soldering successfully solves all the problems of indium solder, and greatly reduces the testing cost of laser buyers, and takes the shortest time to occupy the market and win a good market reputation.

	Hard solder sintering process	Indium solder sintering process
Manufacturer	JCLASER	others
Solder	AuSn	Indium
Creep	X	√
Electromigration	X	√
Heat fatigue	X	√
Reliability	√	X
Stability	√	X
Longer lifetime	√	X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

What is creep?

A phenomenon in which a solid material increases in strain over time while maintaining a constant stress. Unlike plastic deformation, plastic deformation usually occurs after the stress exceeds the elastic limit, and creep can occur as long as the stress acts for a time that is less that the force exerted by the elastic limit. Many materials (such as metals, plastics, rocks, and ice) exhibit creep under certain conditions. Due to creep, the stress state of the material at a certain moment is generally related not only to the instantaneous deformation but also to the deformation process before the transient.

Solder deformation increase the thermal resistance of the laser, thereby affecting the heat dissipation of the lasers.

 

What is electromigration?

Electromigration usually refers to the phenomenon of metal ions moving under the action of an electric field.

Principle of electromigration: A certain current flows through the metal interconnect in working, and metal ions will transport mass along the conductor, which will result in voids or whiskers (hills) in some parts of the conductor. It is the phenomenon of electromigration.

Electromigration can cause laser short-circuiting or laser disconnection under high temperature or strong electric field, which may cause the laser to burn out or to malfunction.

  

Attentions:

Avoid eyes or skin exposure to direct or scattered radiation in case of laser working

Anti-static measures must be taken when transporting, storing and using

Use constant current power supply to avoid surge when working

Used under rated current and rated power, otherwise reduce lifetime

Maintain good thermal dissipation during laser operation

 

3. Applications of high power diode lasers

JCLASER Reply:

* Medical & aesthetic hair removal

* Diode-pumped solid-state laser

* Fiber-coupled laser & Fiber laser

* Infrared illumination       

* Materials processing

* Medical

* Industrial

* Scientific research

* Integrated solutions

 

4. Lead time: 1-2 weeks

5. Loading board: Wuhan

6. Packing: carton

7. Payment: 100% TT in advance, Western union, PayPal, Trade Assurance