Ultra-Fast 3 Terminal VCSEL (U-VCSEL)

Award Information
Agency:
Department of Defense
Amount:
$98,958.00
Program:
STTR
Contract:
W31P4Q-07-C-0260
Solitcitation Year:
2007
Solicitation Number:
N/A
Branch:
Defense Advanced Research Projects Agency
Award Year:
2007
Phase:
Phase I
Agency Tracking Number:
07ST1-0093
Solicitation Topic Code:
ST071-008
Small Business Information
ZIVA CORP.
6160 Lusk Blvd, C-206, San Diego, CA, 92121
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
118614556
Principal Investigator
 Anis Husain
 CEO
 (858) 509-2836
 ahusain@ziva-corp.com
Business Contact
 Marianne Knight
Title: Offcie Manager
Phone: (858) 550-0596
Email: mknight@ziva-corp.com
Research Institution
 UNIV. OF CALIFORNIA, SANTA BARBARA
 Larry Coldren
 Dept of Electrical & Computer
Suite 3205 Eng. Science Bldg.
Santa Barbara, CA, 93106-9560
 (805) 893-4486
 Nonprofit college or university
Abstract
Ziva Corporation in collaboration with UCSB will conduct feasibility study for the concept design of a directly modulated laser with capability of modulation of >40GHz with power dissipation <2mW, with optical output power of ~.5 mW. Our approach is to exploit a three terminal VCSEL structure where the third terminal modulates the optical gain by means of current steering while maintaining the lasing pump current constant. Maintaining the pump current constant during modulation eliminates conventional limits imposed on directly modulated VCSEL speeds and promises to achieve ultra-high speed VCSELs approaching the intrinsic bandwidth ~90 Ghz (fmax) of VCSELs or ~180Gbps. By using a third terminal, the requirements for efficient lasing can be in principle decoupled from requirements imposed by fast modulation (e.g. relaxing modal volume/RC time constant tradeoff). This will be a major breakthrough in the ability to cost effectively directly modulate lasers (even in 2-D arrays) at speeds that have hitherto been only possible by using expensive, bulky and lossy external modulators. The approach is extendable to

* information listed above is at the time of submission.

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