Perfecting ultra-long fiber Bragg gratings for compact Raman lasers (Conference Presentation)

Raman Kashyap

doi:10.1117/12.2510016

4 March 2019 Perfecting ultra-long fiber Bragg gratings for compact Raman lasers (Conference Presentation)

Raman Kashyap

Proceedings Volume 10922, Smart Photonic and Optoelectronic Integrated Circuits XXI; 1092202 (2019) https://doi.org/10.1117/12.2510016
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

INVITED PRESENTATION Distributed feedback (DFB) fiber Bragg grating (FBG) Raman fiber lasers (RFL) were first analysed by Perlin and Winful [1], predicting that meter long uniform FBGs could be used as a Raman oscillator to generate any wavelength with several 10’s watts of pump power. Pi phase shifted distributed feedback grating structures improved the characteristics of the laser significantly [2]. These Raman fiber lasers have improved over the years with a threshold of below 1W. Our own work resulted in several demonstrations of single frequency RFLs and random Raman fiber lasers (rRFL) up to 1 meter long, as well as the lowest reported threshold of 350mW for a RFL. This has been possible only by painstaking analysis and correction of the poor quality of FBGs. The slope efficiency of these lasers, however, is well below that predicted, limited by nonlinear optical effects. This paper will present the state-of-the-art in ultra-long FBGs needed for compact Raman fiber lasers, demonstrate some novel solutions and discuss the limiting issues remaining for improving performance. References: 1. V. E. Perlin and H. G. Winful, "Distributed feedback fiber Raman laser," IEEE Journal of Quantum Electronics 37, 38-47 (2001). 2. Y. Hu and N. G. R. Broderick, "Improved design of a DFB Raman fibre laser," Optics Communications 282, 3356-3359 (2009).

Conference Presentation

Citation Download Citation

Raman Kashyap "Perfecting ultra-long fiber Bragg gratings for compact Raman lasers (Conference Presentation)", Proc. SPIE 10922, Smart Photonic and Optoelectronic Integrated Circuits XXI, 1092202 (4 March 2019); https://doi.org/10.1117/12.2510016

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available