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Paper Abstract and Keywords
Presentation 2014-05-23 10:35
Development of Ultrashort Pulsed Laser at 1μm for Ultrafast Spectroscopy in Visible Range
Yuhei Chiba (TUAT), Hideyuki Takada, Kenji Torizuka (AIST), Kazuhiko Misawa (TUAT) LQE2014-10
Abstract (in Japanese) (See Japanese page) 
(in English) Today, in the field of ultrafast spectroscopy, Ti:Sapphire laser is mainly used as ultrashort pulsed light source. However, in the case of utilizing this laser, subject molecule need to absorb near-infrared light. Generally, visible and near- infrared light pulses outside the range between 700~900 nm is generated by OPA and OPO, in which both high pulse repetition and broadband spectrum cannot be simultaneously fulfilled. Here we report a femtosecond light source around 1 μm in the combination of a mode-locked Yb:KYW oscillator and Yb:fiber amplifier. The seed spectrum was broadened to 200-nm bandwidth using a photonic crystal fiber. We successfully obtained 150 nJ, 3 MHz, 1020~1100 nm at 1 μm by fiber amplification which employs gain narrowing compensator. Amplified pulses were compressed down to 200-fs duration using a grating pair, which was still larger than the transform limited duration of 50 fs.
Keyword (in Japanese) (See Japanese page) 
(in English) Ultrashort Pulsed Laser / Spectrum Broadening / Photonic Crystal Fiber / Gain Narrowing Compensation / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 46, LQE2014-10, pp. 43-47, May 2014.
Paper # LQE2014-10 
Date of Issue 2014-05-15 (LQE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF LQE2014-10

Conference Information
Committee LQE LSJ  
Conference Date 2014-05-22 - 2014-05-23 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To LQE 
Conference Code 2014-05-LQE-LSJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of Ultrashort Pulsed Laser at 1μm for Ultrafast Spectroscopy in Visible Range 
Sub Title (in English)  
Keyword(1) Ultrashort Pulsed Laser  
Keyword(2) Spectrum Broadening  
Keyword(3) Photonic Crystal Fiber  
Keyword(4) Gain Narrowing Compensation  
Keyword(5)  
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1st Author's Name Yuhei Chiba  
1st Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
2nd Author's Name Hideyuki Takada  
2nd Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
3rd Author's Name Kenji Torizuka  
3rd Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
4th Author's Name Kazuhiko Misawa  
4th Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
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Speaker Author-1 
Date Time 2014-05-23 10:35:00 
Presentation Time 25 minutes 
Registration for LQE 
Paper # LQE2014-10 
Volume (vol) vol.114 
Number (no) no.46 
Page pp.43-47 
#Pages 5 
Date of Issue 2014-05-15 (LQE) 

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