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EO Polymer-based Bias-Free Highly-Linear Domain Inverted Directional Coupler

Award Information

Department of Defense
Defense Advanced Research Projects Agency
Award ID:
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Omega Optics, Inc.
10306 Sausalito Dr Austin, TX -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2008
Title: EO Polymer-based Bias-Free Highly-Linear Domain Inverted Directional Coupler
Agency / Branch: DOD / DARPA
Contract: W31P4Q-08-C-0160
Award Amount: $99,000.00


provide a linear modulation curve good enough for a high spurious free dynamic range (SFDR) for RF photonics. In Conventional Mach Zehnder (MZ) modulators achieves a low driving voltage V to 1 volt but fails to this program, Omega Optics proposes a 1x2 Y-fed directional coupler together with a multiple domain inversion poling technique, which is exclusively available for EO polymer thin film. The 1x2 Y-fed configuration provides us with a bias-free approach while the multiple domain inversion provides the linear transfer curve with SFDR well above 121 dB/Hz, which is well above that can be provided by MZ modulator. With the availability of MORPH EO polymer having an ?33 as large as 300pm/V at 1.3 m, V < 1 volt can be easily achieved. More importantly, more sections of domain inversion can be realized to further upgrade the linearity of the transfer curve which creates significant improvement of the SFDR that is not achievable through other competing technologies. In Phase I, we will demonstrate a domain inverted polymer waveguide modulator with projected linearity and device insertion loss with a detailed plan of phase II demonstration. A traveling-wave MORPH EO polymer based modulator with 40 GHz bandwidth and fiber to waveguide coupling loss at <0.7 dB/facet will be demonstrated in phase II.

Principal Investigator:

Alan Wang
Research Scientist

Business Contact:

Clara W. Chen
Small Business Information at Submission:

10435 Burnet Rd., Suite 108 Austin, TX 78758

EIN/Tax ID: 743016162
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No