Giant tunable optical dispersion using chromo-modal excitation of a multimode waveguide

Diebold, Eric D. and Hon, Nick K. and Tan, Zhongwei and Chou, Jason and Sienicki, Todd and Wang, Chao and Jalali, Bahram (2011) Giant tunable optical dispersion using chromo-modal excitation of a multimode waveguide. Optics Express, 19 (24). pp. 23809-23817. ISSN 1094-4087. (doi:https://doi.org/10.1364/OE.19.023809) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1364/OE.19.023809

Abstract

The ability to control chromatic dispersion is paramount in applications where the optical pulsewidth is critical, such as chirped pulse amplification and fiber optic communications. Typically, devices used to generate large amounts (>100 ps/nm) of chromatic dispersion are based on diffraction gratings, chirped fiber Bragg gratings, or dispersion compensating fiber. Unfortunately, these dispersive elements suffer from one or more of the following restrictions: (i) limited operational bandwidth, (ii) limited total dispersion, (iii) low peak power handling, or (iv) large spatial footprint. Here, we introduce a new type of tunable dispersive device, which overcomes these limitations by leveraging the large modal dispersion of a multimode waveguide in combination with the angular dispersion of diffraction gratings to create chromatic dispersion. We characterize the device’s dispersion, and demonstrate its ability to stretch a sub-picosecond optical pulse to nearly 2 nanoseconds in 20 meters of multimode optical fiber. Using this device, we also demonstrate single-shot, time-wavelength atomic absorption spectroscopy at a repetition rate of 90.8 MHz.

Item Type: Article
Subjects: T Technology
Divisions: Faculties > Sciences > School of Engineering and Digital Arts
Faculties > Sciences > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: Tina Thompson
Date Deposited: 28 Oct 2013 12:35 UTC
Last Modified: 28 Oct 2013 12:35 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/35701 (The current URI for this page, for reference purposes)
  • Depositors only (login required):