Theoretical investigation for coupling between a laser diode and an optical waveguide via a gap

1986 ◽  
Vol 69 (8) ◽  
pp. 71-80 ◽  
Author(s):  
Yukio Fujii ◽  
Masanori Matsuhara ◽  
Nobuaki Kumagai
Keyword(s):  
Optical Waveguide ◽  
Theoretical Investigation ◽  
Laser Diode

Theoretical investigation of coupling between a laser diode and a lensed fiber

Optik ◽  
2003 ◽  
Vol 114 (10) ◽  
pp. 457-460 ◽  
Author(s):  
A.R. Faidz ◽  
V.N. Mishra
Keyword(s):  
Theoretical Investigation ◽  
Laser Diode

High-Power, High-Brightness 1 cm Laser Diode Bar with V-Shaped Optical Waveguide Structure

2004 ◽  
Vol 43 (No. 8A) ◽  
pp. L1007-L1009 ◽  
Author(s):  
Hirofumi Miyajima ◽  
Akiyoshi Watanabe ◽  
Masaaki Matsuura ◽  
Hirofumi Kan
Keyword(s):  
Optical Waveguide ◽  
Laser Diode ◽  
High Power ◽  
Waveguide Structure ◽  
High Brightness

Misalignment Consideration in Laser Diode to Circular Core Single-Mode Dispersion-Shifted/Dispersion-Flattened Fiber Excitation via Hemispherical Microlens on the Tip of the Fiber

2016 ◽  
Vol 37 (2) ◽  
Author(s):  
Kiranmay Kamila ◽  
Tapas Ranjan Middya ◽  
Sankar Gangopadhyay
Keyword(s):  
Theoretical Investigation ◽  
Laser Diode ◽  
Theoretical Study ◽  
Single Mode ◽  
Simple Manner ◽  
Excitation Efficiency ◽  
Numerical Integrations ◽  
Mode Dispersion ◽  
Analytical Expressions ◽  
Model Technique

AbstractWe report the theoretical study of excitation efficiency in the presence of possible transverse and angular misalignments in the case of excitation of single-mode circular core dispersion-shifted and dispersion-flattened fiber by laser diode via hemispherical microlens on the tip of the fiber. The present study takes into consideration limited aperture allowed by the hemispherical microlens. Employing ABCD matrix technique involving refraction of paraxial rays by a hemispherical microlens on the fiber tip, we formulate analytical expressions for the coupling efficiencies in the presence of the said misalignments. The estimations of the concerned efficiencies as well as associated losses by using our formulations will require little computations. But the results found are sufficiently accurate and the execution of our formalism is simple. Thus the prescribed analytical expressions are useful and new in the sense that prediction of coupling optics can be made accurately but in a simple manner without requiring lengthy numerical integrations concerned with conventional phase model technique. Moreover, the present study, as per our knowledge till date, being the first theoretical investigation of excitation efficiency for the said type of coupling device, will benefit the experimentalists, designers and packagers who are working in the field of optimum launch optics involving such coupler.

Sign in / Sign up

Export Citation Format

Share Document