Pulse shaping with a phase-shifted fiber Bragg grating for antisymmetric pulse generation

George Curatu; Sophie LaRochelle; Claude Pare; Pierre-Andre Belanger

doi:10.1117/12.424698

12 April 2001 Pulse shaping with a phase-shifted fiber Bragg grating for antisymmetric pulse generation

George Curatu, Sophie LaRochelle, Claude Pare, Pierre-Andre Belanger

Proceedings Volume 4271, Optical Pulse and Beam Propagation III; (2001) https://doi.org/10.1117/12.424698
Event: Photonics West 2001 - LASE, 2001, San Jose, CA, United States

Abstract

Pulses of arbitrary temporal shape can be generated by spectrally filtering a short pulse. Frequency selective reflectors, such as fiber Bragg gratings, can be designed to obtain the desired pulse shape. The required distribution of the refractive index modulation, amplitude and phase, can be calculated using inverse scattering techniques. For weak gratings, under the Born approximation, the impulse response of the grating is directly related to the refractive index distribution. The specified refractive index can be photo-written in an optical fiber using standard phase-mask scanning techniques. Two Bragg gratings were specially designed to shape a train of gaussian pulses into antisymmetric Hermite-Gauss pulses. The first grating had a length of 40 mm producing a spectral response over 0.05 nm (peak-to-peak). This grating was interrogated by 100 ps pulses produced by a CW tunable laser with an external modulator. The second grating (L = 10 mm and ?? = 0.18 nm) was interrogated with a mode-locked fiber laser (7 ps). The pulses were characterized in the frequency and time domain. The antisymmetric pulses were propagated in standard fiber to verify the presence of the phase shift between the two lobes. These Hermite-Gauss pulses could be used to study antisymmetric dispersion-managed soliton pulses.

Citation Download Citation

George Curatu, Sophie LaRochelle, Claude Pare, and Pierre-Andre Belanger "Pulse shaping with a phase-shifted fiber Bragg grating for antisymmetric pulse generation", Proc. SPIE 4271, Optical Pulse and Beam Propagation III, (12 April 2001); https://doi.org/10.1117/12.424698

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