Title :
Study on testing system of CW/QCW high-power laser diode array´s divergence angle
Author :
Lili, Dong ; Wenhai, Xu ; Xun, Zhang ; Wenyan, Tang
Author_Institution :
Harbin Inst. of Technol., Harbin
Abstract :
A new testing system of CW/QCW high-power laser diode arrays (HLDA)´s divergence angle was presented. The testing system included driving power, water cooling system, module of adjusting to center, detector and data acquisition module etc. The most important part of this testing system was detector for laser signal. It was designed by ourselves and made of two hemicycle probes. Two key problems of existing methods were resolved by this system. First, testing error induced by looking HLDA as point light source was reduced. Second, the problem that detector was shattered or burned because of high power was resolved. Besides data acquisition module contained two suits of disposing processes, in order to test divergence angle of either CW or QCW HLDA.
Keywords :
semiconductor laser arrays; testing; CW/QCW laser diode arrays; data acquisition; disposing processes; divergence angle; driving power; high-power laser diode array; laser signal detector; point light source; testing system; water cooling system; Cooling; Data acquisition; Detectors; Diode lasers; Optical arrays; Quantum cascade lasers; Semiconductor laser arrays; Signal detection; Signal resolution; System testing; Divergence angle; High-power laser diode arrays (HLDA); Intensity;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4351161
