New Arrival-High Duty Cycle High Power Multi-Spectral Peak Semiconductor Stacked Array Lasers

19 Aug 2024

01. Introduction

With the rapid development of semiconductor laser theory, materials, preparation process and packaging technology, as well as the continuous improvement of semiconductor laser power, efficiency, lifetime and other performance parameters, high-power semiconductor lasers, as a direct light source or pump light source, not only have a wide range of applications in the fields of laser processing, laser therapy, laser display, etc., but also have gained important applications in the fields of space optical communication, atmospheric detection, LIDAR, target recognition and so on. High-power semiconductor lasers support the development of many high-tech industries and have been the strategic high point of fierce competition among developed countries.

02. Product Description

Semiconductor laser as the back-end solid-state and Fiber Laser core pumping source, its emission wavelength with the increase in operating temperature and red shift, the amount of change is usually 0.2-0.3nm / ℃, temperature drift will lead to the LD emission spectral lines and solid gain medium absorption spectral lines mismatch, the absorption coefficient of the gain medium is reduced, the laser's output efficiency will be sharply reduced, generally will take a complex temperature control system for the The laser is generally cooled by a complex temperature control system, but the temperature control system increases the size and power consumption of the system.

In order to meet the requirement of miniaturization of lasers for special applications such as unmanned vehicle, laser ranging, LIDAR, etc., we have developed and 

launched the high duty cycle multi-spectral peaks conduction-cooled stacked array series of LM-8xx-Q1600-F-G8-P0.5-0 products. By expanding the number of spectral 

lines of the LD, the solid gain medium absorption is stabilized over a wide temperature range, which is conducive to reducing the pressure of the temperature control 

system, reducing the size and power consumption of the laser, and at the same time ensuring the high energy output of the laser. The product has a high duty cycle and 

a wide operating temperature range, and can work normally under the condition of 2% duty cycle at 75℃ at the highest.

Relying on advanced bare chip testing system, vacuum eutectic bonding, interface material and fusion engineering, transient thermal management and other core technologies, Lumispot Tech can realize precise control of multi-spectral peaks, high working efficiency and advanced thermal management capability to ensure the long term life and high reliability of the array product.

03. Product Features

★Multi-spectral peak controllable

As a solid-state laser pumping source, in order to expand the temperature range of the laser's stable operation and streamline the laser's temperature control and heat 

dissipation system, in the increasing pursuit of miniaturization of semiconductor lasers in the trend, our company has successfully developed the 

LM-8xx-Q1600-F-G8-P0.5-0 this innovative product.

This product can accurately control the wavelength range, wavelength spacing, and multiple spectral peaks controllable (≥2 peaks) through the selection of wavelength 

and power of the bar chip by our advanced bare chip testing system. It makes the product's working temperature range wider and pump absorption more stable.

★ Extreme conditions work

LM-8xx-Q1600-F-G8-P0.5-0 product heat dissipation ability, process stability, product reliability high maximum operating temperature up to 75 ℃.

★High duty cycle

LM-8xx-Q1600-F-G8-P0.5-0 products for the conduction cooling method, bar spacing of 0.5mm, can be in 2% duty cycle conditions of normal operation.

★High Conversion Efficiency

LM-8xx-Q1600-F-G8-P0.5-0 products, in 25 ℃, 200A, 200us, 100Hz conditions, electro-optical conversion efficiency of up to 65%; in 75 ℃, 200A, 200us, 100Hz conditions, electro-optical conversion efficiency of up to 50%.

★Peak Power

LM-8xx-Q1600-F-G8-P0.5-0 product, under 25℃, 200A, 200us, 100Hz conditions, the peak power of single bar can reach over 240W/bar.

★Modular Design

LM-8xx-Q1600-F-G8-P0.5-0 products, using a combination of precision and practical concepts. Characterized by a compact, simple and smooth shape, it offers extreme flexibility in terms of practicality.

In addition, its solid and stable structure and the adoption of high-reliability components ensure the long-term stable operation of the product. At the same time, the modular design can be flexibly customized to meet the customer’s usage requirements, and the product can be customized in terms of wavelength, light-emitting spacing, compression, etc., which makes the use of the product more flexible and reliable.

★Thermal Management Technology

For LM-8xx-Q1600-F-G8-P0.5-0 products, we use high thermal conductivity materials that match the CTE of the bar strips to ensure material consistency while ensuring good heat dissipation. The finite element method is used to simulate and calculate the temperature field of the device. By effectively combining transient and steady state thermal simulations, we are able to better control product temperature variations.

★Process Control

This model utilizes traditional hard-solder soldering technology. The process control ensures that the product achieves optimal heat dissipation within the set spacing. This not only ensures the functionality of the product, but also the safety and durability of the product.

04. Main technical specifications

LM-8xx-Q1600-F-G8-P0.5-0 products have the advantages of visible wavelengths and peaks, small size, light weight, high efficiency of electro-optical conversion, high reliability and long life.

The basic parameters are as follows:

Dimensional drawing of product appearance:

Typical values of test data are shown below: 

Lumispot Tech has launched the latest high duty cycle multispectral peak semiconductor stacked array bar laser, which, as a multispectral peak semiconductor laser, can make the wave peaks of each wavelength clearly visible compared with the traditional multispectral peak lasers, and satisfy the advantages of small spacing, high peak power, high duty cycle, and high operating temperature. According to the specific needs of customers, wavelength requirements, wavelength spacing, etc. can be precisely customized, but also can be customized bar number, output power and other indicators, fully demonstrating the flexible configuration characteristics. Modular design makes it adaptable to a wide range of application environments, and through the combination of different modules, it is able to meet a variety of customer needs.

Lumispot Tech focuses on the research, development, production and service of various laser pump sources, light sources, laser application systems and other products for the special field. The product series include: (405nm ~ 1570nm) a variety of power single-tube, barbed, multi-tube fiber-coupled semiconductor lasers and modules; (100-1000w) multi-wavelength short-wave laser light source; uJ-class erbium glass lasers and so on.

Our products are widely used in LIDAR, laser communication, inertial navigation, remote sensing and mapping, machine vision, laser lighting, fine processing and other special fields.

Lumispot Tech attaches importance to scientific research, focuses on product quality, adheres to the customer’s interests as the first, continuous innovation as the first, and the growth of employees as the first corporate guidelines, stands at the forefront of laser technology, seeks for new breakthroughs in industrial upgrading, and is committed to becoming a “global leader in the field of laser special information”.

Lumispot

Tel: + 86-0510 87381808.

Mobile: + 86-15072320922

Email: sales@lumispot.cn

Website: www.lumispot-tech.com