100G PicoMetrix CR-100D Coherent receiver
The PicoMetrix CR-100D 100Gbps DPQPSK polarization-maintaining coherent receiver integrates a demodulator, balanced detectors and bandwidth adjustment in an ultracompact package, supporting DP-QPSK in 100Gbps/200Gbps coherent systems. The PicoMetrix CR-100D 100Gbps PM-QPSK polarization-maintaining coherent receiver integrates an optical hybrid and balanced detectors in an ultracompact package, supporting DP-QPSK in 100Gbps/200Gbps coherent systems. 100Gbps Coherent DP-QPSK Receiver, PicoMetrix CR-100D, PBS and 90Deg. Hybrid Integrated The coherent receiver module CR-100D consists of an integrated polarization beam splitter and four balanced photo-receivers monolithically integrated with optical 90° hybrids. The receiver is a fully differential optical front-end suited for 100 Gbit/s DP-QPSK applications featuring high linearity and high common mode rejection ratio. The optical 90° hybrids demodulate the I/Q incident signal for each respective polarization state using external reference oscillator laser sources. The mixing products are detected by PIN-photodiodes and amplified by trans-impedance amplifiers (TIA) with linear transfer characteristics.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Wavelength range λ [Optical Input /T=-5°C to75°C; wavelength interval as explicitly specified per XC/XL option / Extended C-band(XC option)] | 1525–1570 nm |
| Wavelength range λ [Optical Input /T=-5°C to75°C; wavelength interval as explicitly specified per XC/XL option / Extended L-band(XL option)] | 1554–1612 nm |
| Bit rate [Optical Input /T=-5°C to75°C; wavelength interval as explicitly specified per XC/XL option / 32Gb/s is specified by the OIF for soft FEC] | typical:28 Gb/s；max:32 Gb/s |
| Signal input power P_S_in [Optical Input /T=-5°C to75°C; wavelength interval as explicitly specified per XC/XL option / At signal input,with LO input at16dBm; plot-derived operating boundaries not extracted] | max:+3 dBm |
| Polarization extinction ratio [Optical Input /T=-5°C to75°C; wavelength interval as explicitly specified per XC/XL option] | min:18 dB |
| LO input power P_LO_in [Optical Input /T=-5°C to75°C; wavelength interval as explicitly specified per XC/XL option / At LO input with Signal on; no plot-derived bounds] | max:16 dBm |
| I/Q relative phase in mixer [Optical Input /T=-5°C to75°C; wavelength interval as explicitly specified per XC/XL option / Individually for X,Y polarizations] | min:85 deg；typical:90 deg；max:95 deg |
| I/Q phase stability in mixer [Optical Input /T=-5°C to75°C; wavelength interval as explicitly specified per XC/XL option / Over lifetime] | min:-2 deg；max:+2 deg |
| PBS/Mixer excess loss [Optical Input /T=-5°C to75°C; wavelength interval as explicitly specified per XC/XL option / From any input to any mixer output] | typical:3.1 dB |
| Optical input return loss ORL [Optical Input /T=-5°C to75°C; wavelength interval as explicitly specified per XC/XL option / For all connectorized input ports] | max:-27 dB |
| Bandwidth(-3dB elec.) f_-3dBe [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm] | min:20 GHz；max:29 GHz |
| Low frequency cutoff f_L [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm] | max:100 kHz |
| Photodiode responsivity | typical:0.65 A/W |
| Photodiode responsivity | typical:0.64 A/W |
| Photodiode responsivity | typical:0.59 A/W |
| Photodiode dark current I_D [25°C,nominal bias; O/E table headingλ1550nm] | max:100 nA |
| Effective responsivity | min:0.05 A/W |
| Deviation of all Responsivities [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm] | min:-1 dB；max:+1 dB |
| Raw conversion gain range CG [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm /Single-ended;adjustable via gain control pin for PD and Amp only;no mixer losses included] | typical:25 to1600 V/W |
| Effective conversion gain range | typical:2.6 to88 V/W |
| AGC frequency response [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm] | min:0.3 MHz；typical:1 MHz |
| Temporal skew [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm /P/N outputs] | typical:2 ps；max:3 ps |
| Temporal skew [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm /XI/XQ/YI/YQ;across all four channels(optical and electrical)] | max:10 ps |
| Linearity THD [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm /Total harmonic distortion@1GHz,output swing<350mV,single-ended] | max:3 % |
| LO input X-Y imbalance [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm /10log(X_avg/Y_avg)] | typical:±1 dB；max:±1.5 dB |
| CMRR(DC) [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm / For signal input / Common-mode rejection ratio(CMRR)=20log(abs(I1-I2)/(I1+I2))] | max:-17 dB |
| CMRR(DC) [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm / For LO input / Common-mode rejection ratio(CMRR)=20log(abs(I1-I2)/(I1+I2))] | max:-12 dB |
| CMRR(AC at22GHz) [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm / For signal input / Common-mode rejection ratio(CMRR)=20log(abs(I1-I2)/(I1+I2))] | max:-16 dB |
| CMRR(AC at22GHz) [O/E Transfer Characteristics /T=-5°C to75°C /λ=1550nm / For LO input / Common-mode rejection ratio(CMRR)=20log(abs(I1-I2)/(I1+I2))] | max:-10 dB |
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