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High Linearity InP-Based Phase Modulators Using a Shallow Quantum-Well Design
2010
IEEE Photonics Technology Letters
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Phase modulator nonlinearity is a major problem for implementing an optical phase-locked loop (OPLL) phase demodulator. In this letter, we report an improved InP phase modulator design that uses a detuned shallow multiquantum-well structure. The phase modulator shows high linearity and low optical loss. Its phase IP3 and optical loss per unit length are 4 mm and 0.9 dB/mm, respectively. This phase modulator design is thus suitable for implementing the OPLL linear phase demodulator. Index
doi:10.1109/lpt.2010.2054076
fatcat:yajqfif6drfqhap2525wy7dhai