Optical DPSK Demodulator
Optical differential-phase shift keying (DPSK) provides a desired modulation format that offers high receiver sensitivity, high tolerance…
Optoplex · Optical Phase Demodulators
DQPSK Demodulator
Differential Quaternary Phase-Shift Keying (DQPSK) is the four-level version of DPSK.
| Manufacturer | Optoplex |
|---|---|
| Product code | DI-CA |
| SKU | 53839000000926045 |
| Description | Optical Demodulator, DQPSK |
Overview
Differential Quaternary Phase-Shift Keying (DQPSK) is the four-level version of DPSK. DQPSK transmits two bits for every symbol (bit combinations being 00, 01, 11 and 10) and has an additional advantage over conventional binary DPSK. DQPSK has a narrower optical spectrum, which tolerates more dispersion (both chromatic and polarization-mode), allows for stronger optical filtering, and enables closer channel spacing. As a result, DQPSK is the only modulation format which allows processing of 40Gb/s data-rate in a 50-GHz channel spacing system.
Features
- Athermal design
- C+L band coverage by a single device
- Low temperature-dependent frequency shift (TDFS)
- Low polarization-dependent frequency shift (PDFS)
- Wide bandwidth
- Low insertion loss & PDL
- High power handling
- Passive, semi-tunable and fully tunable operation
- Suitable for both RZ and NRZ modulation format
- Telcordia GR-1221 qualified
Applications
- 5 or 20 Gb/s DQPSK Signal Reception
- Data Rate Optimization
- Extend Transmission Distances
Downloads
Please feel free to share or download any of the provided data sheets.
DQPSK Demodulator data sheetPDF · 71 KB · OptoplexDownloadAlso in Optical Phase Demodulators
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