scholarly journals Effect of Hole Shift on Threshold Characteristics of GaSb-Based Double-Hole Photonic-Crystal Surface-Emitting Lasers

Micromachines ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 468
Author(s):  
Yu-Hsun Huang ◽  
Zi-Xian Yang ◽  
Su-Ling Cheng ◽  
Chien-Hung Lin ◽  
Gray Lin ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Crystal Surface ◽  
Band Edge ◽  
Square Lattice ◽  
Type I ◽  
Lattice Period ◽  
Lasing Wavelength ◽  
Surface Emitting Lasers ◽  
Lattice Unit ◽  
Emitting Lasers

Photonic-crystal (PC) surface-emitting lasers (SELs) with double-hole structure in the square-lattice unit cell were fabricated on GaSb-based type-I InGaAsSb/AlGaAsSb heterostructures. The relative shift of two holes was varied within one half of the lattice period. We measured the lasing wavelengths and threshold pumping densities of 16 PC-SELs and investigated their dependence on the double-hole shift. The experimental results were compared to the simulated wavelengths and threshold gains of four band-edge modes. The measured lasing wavelength did not exhibit switching of band-edge mode; however, the calculated lowest threshold mode switched as the double-hole shift exceeded one quarter of the lattice period. The identification of band-edge lasing mode revealed that modal gain discrimination was dominated over by its mode wavelength separation.

scholarly journals Mid-Infrared Photonic-Crystal Surface-Emitting Lasers with InGaAs/GaAsSb ‘W’-Type Quantum Wells Grown on InP Substrate

Photonics ◽  
2018 ◽  
Vol 5 (4) ◽  
pp. 32 ◽  
Author(s):  
Zong-Lin Li ◽  
Yuan-Chi Kang ◽  
Gray Lin ◽  
Chien-Ping Lee
Keyword(s):  
Photonic Crystal ◽  
Quantum Wells ◽  
Crystal Surface ◽  
Cavity Resonance ◽  
Etch Depth ◽  
Wavelength Shift ◽  
Lattice Period ◽  
Lasing Wavelength ◽  
Surface Emitting Lasers ◽  
Emitting Lasers

InP-based InGaAs/GaAsSb ‘W’-type quantum well (QW) photonic-crystal (PC) surface- emitting lasers (SELs) of 2.2 μm wavelength range are fabricated and room-temperature lasing emissions by optical pumping are demonstrated for the first time. Photonic-crystal surface-emitting laser (PCSEL) devices are investigated in terms of PC parameters of etch depth, lattice period, and filling factor. The lasing emissions cover wavelengths from 2182 nm to 2253 nm. The temperature-dependent lasing characteristics are also studied in terms of lattice period. All PCSELs show consistent lasing wavelength shift against temperature at a rate of 0.17 nm/K. The characteristic temperatures of PCSELs are extracted and discussed with respect to wavelength detuning between QW gain peak and PC cavity resonance.

scholarly journals Electronic control of coherence in a two-dimensional array of photonic crystal surface emitting lasers

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
R. J. E. Taylor ◽  
D. T. D. Childs ◽  
P. Ivanov ◽  
B. J. Stevens ◽  
N. Babazadeh ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Crystal Surface ◽  
Two Dimensional ◽  
Electronic Control ◽  
Dimensional Array ◽  
Surface Emitting Lasers ◽  
Emitting Lasers

Threshold gain analysis in GaN-based photonic crystal surface emitting lasers

2011 ◽  
Vol 36 (10) ◽  
pp. 1908 ◽  
Author(s):  
Peng-Hsiang Weng ◽  
Tzeng-Tsong Wu ◽  
Tien-Chang Lu ◽  
Shing-Chung Wang
Keyword(s):  
Photonic Crystal ◽  
Crystal Surface ◽  
Surface Emitting Lasers ◽  
Emitting Lasers ◽  
Threshold Gain

scholarly journals The improvement of output efficiency of p-face up Photonic-Crystal Surface-Emitting Lasers

2021 ◽  
Author(s):  
Lih-Ren Chen ◽  
Kuo-Bin Hong ◽  
Kuan-Chi Huang ◽  
Hsu-Tung Yen ◽  
Tien-Chang Lu
Keyword(s):  
Photonic Crystal ◽  
Crystal Surface ◽  
Surface Emitting Lasers ◽  
Output Efficiency ◽  
Emitting Lasers
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