OSA's Digital Library

Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 25, Iss. 7 — Jul. 1, 2007
  • pp: 1761–1770

A True Time Delay Beamforming System Incorporating a Wavelength Tunable Optical Phase-Lock Loop

Howard R. Rideout, Joe S. Seregelyi, and Jianping Yao

Journal of Lightwave Technology, Vol. 25, Issue 7, pp. 1761-1770 (2007)


View Full Text Article

Acrobat PDF (641 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

A true time delay (TTD) beamforming system incorporating a wavelength tunable optical phase-lock loop (OPLL) module is proposed and experimentally demonstrated. In the proposed system, instead of using a high-frequency intensity modulator to modulate the optical carrier with an RF signal, we use two laser diodes (LDs) that are phase locked to generate an RF signal, which is then sent to a fiber Bragg grating (FBG) prism to produce different time delays. Since no optical intensity modulator is used, the system can operate at much higher frequencies with a reduced cost. In addition, the use of only two wavelengths eliminates the power-penalty problem caused by chromatic dispersion. In the proposed approach, the wavelengths from the two LDs are phase-locked using a frequency-discriminator-aided OPLL. A TTD beamforming system, using the OPLL in combination with an FBG prism to achieve tunable time delays, is investigated. Experimental time-delay results are provided.

© 2007 IEEE

Citation
Howard R. Rideout, Joe S. Seregelyi, and Jianping Yao, "A True Time Delay Beamforming System Incorporating a Wavelength Tunable Optical Phase-Lock Loop," J. Lightwave Technol. 25, 1761-1770 (2007)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-25-7-1761

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited