The JDS Uniphase S174H is a dual parallel Mach-Zehnder optical modulator engineered for spectrally efficient DWDM transmission in metro, long-haul, and ultra-long-haul optical networks. This monolithically integrated modulator combines high-speed amplitude and phase modulators with integrated RF power monitors, delivering matched electro-optic response across a 20 GHz frequency range. The S174H operates from tunable laser sources in the C or L band and supports data rates from 10 Gb/s ULH applications to 40 Gb/s metro and regional transport. Housed in a compact 6 mm hermetic package with single-sided electrical I/O and GPO RF connectors, it meets Telcordia GR-468 compliance and enables dispersion-tolerant modulation for flexible, cost-effective optical network architectures.
## Technical Specifications
• **Modulator Architecture:** Dual parallel Mach-Zehnder with integrated phase modulator
• **Electro-Optical Bandwidth:** 20 GHz with matched amplitude and phase response
• **RF Inputs:** GPO connectors
• **Electrical I/O:** Single-sided configuration
• **RF Drive Voltage Range:** 4 – 11 V
• **DC Bias Voltage Rail:** -15 V
• **EOL Voltage Rail:** 15 V
• **RF Detector Threshold:** 0.5 V
• **RF Detector Slope:** 0.1 V/Vpk-pk
• **Linearity (4 – 11 V RF drive):** ±5%
• **Package Height:** 6 mm hermetic
## Key Features
• Monolithic integration of parallel high-speed MZ modulators with phase modulator
• Integrated RF power monitors for precision bias and drive control
• Matching amplitude and phase response across operational band
• Optimized for spectrally efficient DQPSK modulation
• Full C and L band tunable laser compatibility
## Typical Applications
• 40 Gb/s metro, regional, and long-haul optical networks
• 10 Gb/s ultra-long-haul optical networks
• Spectrally efficient DWDM transmission systems
## Compatibility & Integration
• Compatible with full-band tunable lasers in C or L band
• Telcordia GR-468 compliance
• Designed for agile optical networks with flexible, lower-cost operations
