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ICOP & ICPET 2018, 24 - : 113-116 Back to browse issues page
Effect of RW length and taper angle on beam quality and threshold current density in high power tapered diode lasers
Arash Hodaei * 1, Vahid Ahmadi 2, Gholamreza Abaeiani 3
1- Iranian National Center for Laser Science and Technology
2- Tarbiat Modares University
3- Photonics and Quantum Technologies School, Nuclear Science and Technology Research Institute
Abstract:   (189 Views)
The effect of RW length and taper angle on the beam quality and threshold current density of a SQW Al0.07Ga0.93As 808 nm high power tapered laser diode is investigated by simulation. Results in an output optical power of 1 W shows that in taper angle of 3°, M2 factor is about 3 and in wider angles (4,5,6) ,in RW lengths of 500, 750 and 1000 μm, is increased with the slope of 0.21, 0.18 and 0.08 respectively. Threshold current density is linearly decreased in wider taper angles from 850 to 630 (A/cm2), from 730 to 570 (A/cm2) and from 520 to 330 (A/cm2) in laser diodes with RW lengths of 500, 750 and 1000 μm respectively.
Keywords: Beam quality, Threshold current density, High power tapered laser diode
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Type of Study: Research | Subject: Special
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Hodaei A, Ahmadi V, Abaeiani G. Effect of RW length and taper angle on beam quality and threshold current density in high power tapered diode lasers. ICOP & ICPET. 2018; 24 :113-116
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