Performance Characteristics And Reliability Of Distributed Feedback Semiconductor Lasers

1990 ◽  
Author(s):  
N. K. Dutta ◽  
P. Parayanthal
Keyword(s):  
Semiconductor Lasers ◽  
Distributed Feedback ◽  
Performance Characteristics

Integrated Distributed Feedback Laser and Optical Amplifier

1991 ◽  
Vol 240 ◽  
Author(s):  
N. K. Dutta ◽  
J. Lopata ◽  
R. Logan ◽  
T. Tanbun-Ek
Keyword(s):  
Active Region ◽  
Spectral Width ◽  
Optical Amplifier ◽  
Distributed Feedback ◽  
Performance Characteristics ◽  
Distributed Feedback Laser ◽  
Electrical Isolation ◽  
Current Confinement ◽  
Dfb Laser ◽  
And Performance

ABSTRACTThe fabrication and performance characteristics of an integrated distributed feedback (DFB) laser and optical amplifier structure are described. The structure utilizes semi-insulating Fe doped InP layers for current confinement to the active region, electrical isolation between the two sections and for lateral index guiding. The amplified output has a slope of 1 mW/mA of laser current with the amplifier biased at 150 mA which is a factor of 5 larger than that for a typical laser. The laser emits near 1.55 μm and the spectral width under modulation of the amplified output is considerably smaller than that for a DFB laser for the same on/off ratio.

Purely gain‐coupled distributed feedback semiconductor lasers

1990 ◽  
Vol 56 (17) ◽  
pp. 1620-1622 ◽  
Author(s):  
Y. Luo ◽  
Y. Nakano ◽  
K. Tada ◽  
T. Inoue ◽  
H. Hosomatsu ◽  
...  
Keyword(s):  
Semiconductor Lasers ◽  
Distributed Feedback

Distributed-feedback semiconductor lasers operating in higher Bragg interaction orders

1978 ◽  
Vol 8 (12) ◽  
pp. 1500-1501
Author(s):  
V I Borodulin ◽  
Yu A Bykovskiĭ ◽  
I G Goncharov ◽  
A P Grachev ◽  
K B Dedushenko ◽  
...  
Keyword(s):  
Semiconductor Lasers ◽  
Distributed Feedback

scholarly journals A Tunable Dual-Passband Microwave Photonic Filter Based on Optically Injected Distributed Feedback Semiconductor Lasers and Dual-Output Mach-Zehnder Modulator

2020 ◽  
Vol 10 (10) ◽  
pp. 3631
Author(s):  
Jiayi Zhao ◽  
Jingjing Hu ◽  
Pengcheng Deng ◽  
Runze Yu ◽  
Ruoxian Liu ◽  
...  
Keyword(s):  
Semiconductor Lasers ◽  
Insertion Loss ◽  
Distributed Feedback ◽  
Center Frequency ◽  
Optical Signals ◽  
Microwave Photonic ◽  
Tunable Range ◽  
Novel Approach ◽  
Mach Zehnder Modulator ◽  
High Flexibility

In this paper, a novel approach to achieving a wideband tunable dual-passband microwave photonic filter (MPF) is proposed based on optical-injected distributed feedback (DFB) semiconductor lasers and a dual-output Mach–Zehnder modulator (DOMZM). The fundamental concepts for realizing the MPF are the wavelength-selective amplification effect and the period-one oscillation state under optically injected DFB lasers. These effects provide a widely tunable range of center frequency, along with high flexibility and low insertion loss. The proposed MPF is experimentally demonstrated, showing that the dual-passband center frequency in the MPF can be tuned independently from 19 to 37 GHz by adjusting the detuning frequency and injection ratio. Meanwhile, the insertion loss of the system is about 15 dB when there is no optical or electrical amplifier in the MPF link. The out-of-band suppression ratio of the MPF is more than 20 dB, which can be improved by adjusting the power of the two optical signals.

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