ModBox-DPSK Electro-Optic Modulation Unit ModBox-CBand-DPSK
ModBox-CBand-DPSK is an optical modulation unit that generates high-performance DPSK optical signals. It integrates a high-speed lithium niobate modulator, high-performance RF drivers and an automatic bias control system. It can also integrate built-in laser sources (DRB, ITLA…) and a balanced detector as a receiving unit. ModBox-CBand-DPSK provides research, development and production engineers with easy-to-use equipment and a user-friendly interface for optical communication laboratories and production test platforms. In addition to the 1550nm band, a 1310nm version is available.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Data-rate [Modulated output optical；embedded 1550 nm laser；DPSK] | 0.1–12.5 Gb/s |
| Dynamic Signal to Noise Ratio SNR [Modulated output optical；embedded 1550 nm laser] | min:25 |
| Rise / fall time tᵣ / t_f [Modulated output optical；embedded 1550 nm laser；20%–80%] | typical:40 ps |
| Electrical Return loss ORL [Modulated output optical；embedded 1550 nm laser；Source labels retained；typ ordering inconsistent] | min:−40; typical:−45 |
| Insertion loss IL [Modulated output optical；embedded 1550 nm laser；At maximum modulator transmission] | typical:4 dB; max:6 dB |
| Data-rate [Demodulated output optical；ModBox DPSK transmitter and receiver stages；Differential] | max:12.5 Gb/s |
| Output eye amplitude [Demodulated output optical；ModBox DPSK transmitter and receiver stages；Single ended] | typical:250 mV |
| Rise / fall time tᵣ / t_f [Demodulated output optical；ModBox DPSK transmitter and receiver stages；20%–80%] | typical:40 ps |
| Added jitter J_RMS [Demodulated output optical；ModBox DPSK transmitter and receiver stages] | typical:3 ps |
| Input voltage V_IN [Absolute maximum ratings；transmitter without options] | max:1 Vpp |
| Optical input power OP_in [Absolute maximum ratings；transmitter without options] | max:20 dBm |
| Wavelength λ [Optional C-Band DFB laser；Other wavelength on request] | 1550.12 nm – ITU CH 34* |
| Laser type [Optional C-Band DFB laser] | DFB |
| Optical output power [Optional C-Band DFB laser；CW] | typical:40* |
| Spectrum linewidth Δλ [Optional C-Band DFB laser；FWHM] | max:1 MHz |
| Optical return loss ORL [Optional C-Band DFB laser] | min:30 dB; typical:35 dB |
| Side mode suppression ratio SMSR [Optional C-Band DFB laser] | min:30 dB |
| Optical output power adjustment P_CW [Optional C-Band DFB laser；Front & back panels with GUI] | 20–40 mW |
| Wavelength laser tuning range [Optional C-Band DFB laser；Back panel with GUI] | typical:0.8 nm; max:1 nm |
| Laser type [C-Band tunable laser] | Tunable |
| Wavelength λ [C-Band tunable laser；Embedded by default] | 1527.60–1565.50 nm |
| Wavelength accuracy Δλ_acc [C-Band tunable laser] | −1.5 to +1.5 |
| Spectrum linewidth Δλ [C-Band tunable laser；FWHM @−3 dB, instantaneous] | max:100 kHz |
| Optical output power [C-Band tunable laser；CW] | 5–35 mW |
| Optical output power adjustment [C-Band tunable laser] | 0–100 % |
| Optical Return Loss ORL [C-Band tunable laser] | min:30 dB |
| Side Mode Suppression Ratio SMSR [C-Band tunable laser] | min:40 dB |
| Data coding type [Optional encoder] | DPSK encoding |
| Data & Clock input impedance Z_IN [Optional encoder；Single ended] | typical:50 Ω |
| Data & Clock input amplitude V_IN [Optional encoder；Single ended or differential] | min:2 mVpp; typical:300 mVpp |
| Output rise and fall times tᵣ / t_f [Optional encoder；10%–90%] | typical:15 ps |
| Optical wavelength range λ_C-band [Optional optical demodulator with fixed FSR (Kylia)；C-band version] | min:1527 nm; typical:1550 nm; max:1565 nm |
| Free Spectral Range FSR [Optional optical demodulator with fixed FSR (Kylia)；fixed；4.5–12 GHz can be provided] | typical:5; 10.7; 12 |
| Decoding data-rate [Optional optical demodulator with fixed FSR (Kylia)；fixed] | typical:5; 10.7; 12 |
| Insertion loss IL [Optional optical demodulator with fixed FSR (Kylia)] | typical:2 dB |
| Pol dependant frequency shift PDFS [Optional optical demodulator with fixed FSR (Kylia)] | typical:4 %FSR |
| Phase tuning range [Optional optical demodulator with fixed FSR (Kylia)] | max:1.5 FSR |
| Maximum optical input power OP_in [Optional optical demodulator with fixed FSR (Kylia)] | max:300 mW |
| Optical wavelength range λ_C-band [Optional optical demodulator with tunable FSR (Kylia)；C-band version] | 1527–1565 nm |
| FSR tuning range ΔFSR [Optional optical demodulator with tunable FSR (Kylia)；Manual adjustment using knob] | 4.5–10 GHz |
| Decoding data-rate range [Optional optical demodulator with tunable FSR (Kylia)] | 4.5–10 Gb/s |
| Phase tuning range [Optional optical demodulator with tunable FSR (Kylia)] | max:1.5 FSR |
| Tuning voltage [Optional optical demodulator with tunable FSR (Kylia)；User supplied；BNC voltage input] | 0–4 V |
| Insertion loss IL [Optional optical demodulator with tunable FSR (Kylia)] | typical:3.5 dB |
| Tuning ΔIL [Optional optical demodulator with tunable FSR (Kylia)] | typical:0.5 dB |
| Pol dependant frequency shift PDFS [Optional optical demodulator with tunable FSR (Kylia)] | typical:4 %FSR |
| Maximum optical input power OP_in [Optional optical demodulator with tunable FSR (Kylia)] | max:300 mW |
| Photodetector type [Optional optical photoreceiver] | Balanced PIN photodiodes with TIA |
| Operating wavelength range λ [Optional optical photoreceiver] | 1480–1620 nm |
| Maximum bit rate [Optional optical photoreceiver] | max:20 Gb/s |
| PD responsivity S [Optional optical photoreceiver；Average polarization @1550 nm] | min:0.85 A/W; typical:0.92 A/W |
| Conversion gain CG [Optional optical photoreceiver；@−10 dBm NRZ input] | typical:2100 V/W |
| OSNR sensitivity [Optional optical photoreceiver；DPSK system with BER 1e−3] | typical:+13 dBm |
| Maximum optical input power P_opt [Optional optical photoreceiver；Into each PD；average level, NRZ] | max:+6 dBm |
| Maximum output swing V_out [Optional optical photoreceiver；Differential] | typical:500 mV; max:600 mV |
| Output rise and fall times tᵣ / t_f [Optional optical photoreceiver] | typical:10 ps |
| Optical Interface [Interfaces] | Polarization maintaining fiber, PM1550 / SMFS8 (demodulator) |
| RF input [Interfaces] | Single SMA female RF connector – 50 Ω |
| Control Interface [Interfaces] | Smart Interface (front panel), GUI (USB type B) |
| Power supply [Interfaces；Rear panel] | 100–120 V / 220–240 V automatic switch; 50–60 Hz |
| Dimensions / Weight [Interfaces] | Rack 19″ × 3U, Depth=375 mm / 3 kg |
Datasheet
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