Details

Autor(en) / Beteiligte

• Min-Cheol Oh
• Hua Zhang
• Cheng Zhang
• Erlig, H.
• Yian Chang
• Tsap, B.
• Chang, D.
• Szep, A.
• Steier, W.H.
• Fetterman, H.R.
• Dalton, L.R.

Titel

Recent advances in electrooptic polymer modulators incorporating highly nonlinear chromophore

Ist Teil von

• IEEE journal of selected topics in quantum electronics, 2001-09, Vol.7 (5), p.826-835

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2001

Quelle

IEEE Electronic Library Online

Beschreibungen/Notizen

• Based on a nonlinear optical polymer with a highly nonlinear chromophore (CLD) dispersed in an amorphous polycarbonate (APC), we have developed electrooptic (EO) polymer modulators operating at 1550-nm wavelength with low loss and good thermal stability. By incorporating polymer insulation layer, push-pull poling was successfully performed without film damages. We also demonstrated that the propagation loss of the EO polymer waveguide could be reduced as low as 1.2 dB/cm at 1550 nm when the large core waveguide structure was incorporated. The long-term reliabilities of the EO polymer modulator made of CLD/APC polymer were investigated. When the modulator was hermetically sealed in an inert gas, the V/sub /spl pi// change of a Mach-Zehnder modulator was negligible over 30 d of operation with 20-mW exposure to the waveguide input. In the thermal stability measurement, 25% V/sub /spl pi// increase was observed from the sample heated to 60/spl deg/C over 40 d, though the sample left at room temperature showed no decay of nonlinearity.