Effect of front facet reflectivity on transmission characteristics of asymmetric reflectivity DFB lasers

1988 ◽  
Vol 24 (19) ◽  
pp. 1228 ◽  
Author(s):  
K. Kamite ◽  
H. Soda ◽  
K. Kihara ◽  
H. Nishimoto ◽  
H. Ishikawa
Keyword(s):  
Transmission Characteristics ◽  
Facet Reflectivity ◽  
Front Facet

scholarly journals Spectral Linewidth vs. Front Facet Reflectivity of 780 nm DFB Diode Lasers at High Optical Output Power

2018 ◽  
Vol 8 (7) ◽  
pp. 1104 ◽  
Author(s):  
Thanh-Phuong Nguyen ◽  
Hans Wenzel ◽  
Olaf Brox ◽  
Frank Bugge ◽  
Peter Ressel ◽  
...  
Keyword(s):  
Output Power ◽  
Diode Lasers ◽  
Substantial Reduction ◽  
Distributed Feedback ◽  
Optical Output ◽  
Spectral Linewidth ◽  
Facet Reflectivity ◽  
Simulation Results ◽  
Front Facet

The influence of the front facet reflectivity on the spectral linewidth of high power DFB (distributed feedback) diode lasers emitting at 780 nm has been investigated theoretically and experimentally. Characterization of lasers at various front facet reflections showed substantial reduction of the linewidth. This behavior is in reasonable agreement with simulation results. A minimum linewidth of 8 kHz was achieved at an output power of 85 mW with the laser featuring a front facet reflectivity of 30%. The device with a front facet reflectivity of 5% reached the same linewidth value at an output power of 290 mW.

scholarly journals Investigation of Using Injection-Locked Fabry–Pérot Laser Diode With 10% Front-Facet Reflectivity for Short-Reach to Long-Reach Upstream PON Access

2013 ◽  
Vol 5 (3) ◽  
pp. 7901208-7901208 ◽  
Author(s):  
Hsing-Yu Chen ◽  
Chien-Hung Yeh ◽  
Chi-Wai Chow ◽  
Jiun-Yu Sung ◽  
Yen-Liang Liu ◽  
...  
Keyword(s):  
Laser Diode ◽  
Fabry Perot ◽  
Facet Reflectivity ◽  
Front Facet

scholarly journals Amplification and front facet reflectivity of broad area lasers

2007 ◽  
Vol 15 (19) ◽  
pp. 12344
Author(s):  
Aviv Keshet ◽  
Peter Eugster ◽  
Paul Bloudoff ◽  
Bruce G. Klappauf ◽  
Kirk W. Madison
Keyword(s):  
Broad Area ◽  
Facet Reflectivity ◽  
Broad Area Lasers ◽  
Front Facet

scholarly journals Nondestructive Measurement for Front Facet Temperature of Semiconductor Lasers

2021 ◽  
Vol 2112 (1) ◽  
pp. 012025
Author(s):  
Yijia Ni ◽  
Shiwei Feng ◽  
Xaozhuang Lu ◽  
Kun Bai ◽  
Yamin Zhang ◽  
...  
Keyword(s):  
Semiconductor Lasers ◽  
Fiber System ◽  
Nondestructive Measurement ◽  
Optical Elements ◽  
Simple Method ◽  
Semiconductor Laser Diode ◽  
All Optical ◽  
Output Facet ◽  
Facet Reflectivity ◽  
Front Facet

Abstract A convenient, simple method is proposed to measure the front facet temperature, which is the highest temperature in the semiconductor laser diode (LD), of a GaAs-based laser by employing thermoreflectance technique. Using an optical system featured in fiber connection, we measured the facet reflectivity of the 808-nm AlGaInAs/AlGaAs LD, which gives information about the temperature of the output facet. The fiber system operates at the wavelength of 1550 nm which avoids the absorption of the probe beam by the tested LD and consists of a fiber-coupled 1550 nm laser illuminant and photodiode. All optical elements in the system are connected by the fibers. The current signal collected from the photodiode is related to the facet reflectivity and represents facet temperature. We compared the facet temperatures determined by thermoreflectance technique with the cavity temperature obtained by forward-voltage method and found that the former is as much as three times as the latter.

Comparison on Injection-Locked Fabry–Perot Laser Diode With Front-Facet Reflectivity of 1% and 30% for Optical Data Transmission in WDM-PON System

2009 ◽  
Vol 27 (14) ◽  
pp. 2779-2785 ◽  
Author(s):  
Gong-Ru Lin ◽  
Hai-Lin Wang ◽  
Gong-Cheng Lin ◽  
Yin-Hsun Huang ◽  
Yi-Hung Lin ◽  
...  
Keyword(s):  
Laser Diode ◽  
Data Transmission ◽  
Optical Data ◽  
Fabry Perot ◽  
Facet Reflectivity ◽  
Front Facet ◽  
Wdm Pon

The Statistical Evaluations of Transmission Characteristics, Limits of Ranges and Speeds of Transmission of Information Via the Pulsed Atmospheric Bistatic Optical Channels

2019 ◽  
pp. 97-104
Author(s):  
Mikhail V. Tarasenkov ◽  
Egor S. Poznakharev ◽  
Vladimir V. Belov
Keyword(s):  
Communication Systems ◽  
Estimation Algorithm ◽  
Transmission Characteristics ◽  
Radiation Beam ◽  
Optical Channels ◽  
The Monte Carlo Method ◽  
Wide Range ◽  
Transmission Of Information ◽  
Optical Axes ◽  
Visibility Range

The simulation program by the Monte Carlo method of pulse reactions of bistatic atmospheric aerosol-gas channels of optical-electronic communication systems (OECS) is created on the basis of the modified double local estimation algorithm. It is used in a series of numerical experiments in order to evaluate statistically the transfer characteristics of these channels depending on the optical characteristics of an atmosphere plane-parallel model for wavelengths λ = 0.3, 0.5, and 0.9 μm at a meteorological visibility range SM = 10 and 50 km. The results are obtained for a set of basic distances between the light source and the light receiver up to 50 km and for the angular orientations of the optical axes of a laser radiation beam and of the receiving system in a wide range of their values. The dependences of the pulse reactions maximum values over-the-horizon channels of the OECS on the variations of these parameters are established.

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