The amplified spontaneous emission in EDF with small pulse pump

Fu Wang; Chongqing Wu; Lanlan Liu; Zhi Wang; Zhenchao Sun; Yaya Mao

doi:10.1117/12.999805

29 November 2012 The amplified spontaneous emission in EDF with small pulse pump

Fu Wang, Chongqing Wu, Lanlan Liu, Zhi Wang, Zhenchao Sun, Yaya Mao

Author Affiliations +

Proceedings Volume 8552, Semiconductor Lasers and Applications V; 85520V (2012) https://doi.org/10.1117/12.999805
Event: Photonics Asia, 2012, Beijing, China

Abstract

The amplified Spontaneous Emission (ASE) is the important noise source for EDFA, affecting the EDFA based fiber laser seriously. The theory and practice have shown that the ASE is closely related with pump methods, so the study on the ASE of EDF under the condition of the pulse pumping has important academic significations. What’s more, the mode-locked laser based on EDFA fiber ring could be pumping by the pulse to realized mode-lock, and the ASE will impact its characteristics. In this paper, the effects of pump pulse with different width and amplitude on the ASE were investigated by the theoretical and experiment methods. Beginning with the carrier density rate equation, we can get each level of the distribution of the number of particles carriers along with the change of time based on the relationship between the average number of photons of the spontaneous radiation and the number of particles carriers distribution. An approximate analytic solution of output ASE noise average is derived when pump signal is small.Building an experimental system, the results show that the output amplitude of ASE is proportional to the input width of pump pulse when the pump pulse is small. It's also shows that the output amplitude of ASE is proportional to the input amplitude of pump pulse. The new phenomena can be used for the all-optical measurement of a pulse width.

Citation Download Citation

Fu Wang, Chongqing Wu, Lanlan Liu, Zhi Wang, Zhenchao Sun, and Yaya Mao "The amplified spontaneous emission in EDF with small pulse pump", Proc. SPIE 8552, Semiconductor Lasers and Applications V, 85520V (29 November 2012); https://doi.org/10.1117/12.999805

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Optical amplifiers

Photons

Fiber lasers

Particles

Mode locking

Pulsed laser operation

Erbium

Show All Keywords

Keywords/Phrases

Search In:

Publication Years