Low-loss pilot-beam delivery in hollow optical fiber for high-energy infrared laser light

Yi-Wei Shi; Kentaro Ito; Yuji Matsuura; Mitsunobu Miyagi

doi:10.1117/12.573469

18 January 2005 Low-loss pilot-beam delivery in hollow optical fiber for high-energy infrared laser light

Yi-Wei Shi, Kentaro Ito, Yuji Matsuura, Mitsunobu Miyagi

Proceedings Volume 5630, Optics in Health Care and Biomedical Optics: Diagnostics and Treatment II; (2005) https://doi.org/10.1117/12.573469
Event: Photonics Asia, 2004, Beijing, China

Abstract

New techniques were established in fabricating cyclic olefin polymer-coated silver (COP/Ag) hollow optical fiber. Low-loss properties in visible region were obtained owing to the smoother layers of silver and polymer. In silver layer plating, a SnCl₂ solution pre-treatment was used to sensitize the inner surface of the glass capillary. A silver layer with an RMS surface roughness of 8 nm was obtained comparing with 18 nm RMS roughness without the pre-treatment. In the liquid-phase coating of the polymer layer, an ambient air of organic solvent was used in the whole process. A smoother polymer layer with RMS roughness of 10 nm was obtained comparing with 20 nm roughness when a normal nitrogen gas-flow was used. The straight and bending loss properties for the hollow fibers have been measured by using a CO₂ laser and a red laser diode at the wavelengths of 10.6 μm and 0.63 μm. The straight losses were 0.4 dB and 1 dB for the hollow fiber (700 μmφ×1 m) made by the new developed fabrication techniques.

Citation Download Citation

Yi-Wei Shi, Kentaro Ito, Yuji Matsuura, and Mitsunobu Miyagi "Low-loss pilot-beam delivery in hollow optical fiber for high-energy infrared laser light", Proc. SPIE 5630, Optics in Health Care and Biomedical Optics: Diagnostics and Treatment II, (18 January 2005); https://doi.org/10.1117/12.573469

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