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Shangjian Zhang on Muck Rack

Shangjian Zhang

As seen in: Optica
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Articles

Single-carrier single-drive two-tone optical stimulus generated by self-heterodyne interferometry for analyzing third-order intermodulation distortion (IMD3) of photodiodes

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By Shangjian Zhang, Di Lei, Yong Liu, Ying Xu
| Optica Verified
A single-carrier single-drive two-tone method is proposed for analyzing the third-order intermodulation distortion (IMD3) of photodiodes (PDs) based on electro-optical self-heterodyne interferometry. A phase-modulated optical carrier is combined with its frequency-shifted replica as the practical optical stimulus for PD.
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Characterizing third-order intermodulation distortion of photodetectors based on de-coupling and de-embedding modulation distortion of modulators

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By Shangjian Zhang, Di Lei, Linze Li, Yong Liu
| Optica Verified
A novel, to the best of our knowledge, electro-optical modulation method is proposed for measuring third-order intermodulation distortion of photodetectors (PDs) based on de-coupling and de-embedding modulation distortion of modulators.
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Pulse generation with programmable positions based on a phase-modulated optical frequency-shifting loop

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By Shangjian Zhang, Lingjie Zhang, Yong Liu, Huan Tian
| Optica Verified
Abstract An approach to generating pulses with programmable positions is proposed and demonstrated based on a phase-modulated optical frequency-shifting loop (OFSL). By setting the OFSL to operate in the integer Talbot state, pulses are generated in the phase-locked positions, since the additional phase introduced by the electro-optic phase modulator (PM) in the OFSL is equal to an integer multiple of 2π in each round trip.
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