The DiCon GP700 is a programmable fiber optic platform engineered for modular integration of switching, attenuation, and filtering functions. A single chassis accommodates up to 30 tunable filters or variable attenuators, combined with up to 64 compact 2×2, 1×2, or On-Off switches. Larger configurations scale through multiple housings. The platform delivers 0.6 dB typical insertion loss on switch modules, -55 dB back-reflection performance in singlemode operation, and -80 dB cross-talk isolation. Switch modules guarantee 10 million cycle durability with ±0.02 dB repeatability. Tunable filter modules offer 0.05 nm tuning resolution, ±0.3 nm absolute accuracy, and 50–1400 ms tuning speed. Variable attenuators span 0–60 dB with better than 0.15 dB resolution. The system accepts 100–240 VAC input at 150 W maximum and operates via external trigger logic (2–5 VDC high, 0–0.5 VDC low) with ±10 kV ESD protection. General purpose outputs switch at 2 ms maximum latency into 50 ohm minimum loads at 50 mA maximum. Compatible fiber types include Corning SMF-28, Flexcor 1060, and Polarization Maintaining Panda.
## Technical Specifications
**Switch Modules**
• Insertion Loss: 0.6 dB typical, 1.2 dB maximum
• Back-reflection (Singlemode): −55 dB maximum
• Back-reflection (Multimode): −20 dB typical
• Polarization Dependent Loss: 0.05 dB maximum at 1550 nm
• Cross-talk: −80 dB maximum
• Repeatability: ±0.02 dB maximum (100 cycles sequential)
• Durability: 10 million cycles minimum
• Switching Time: 425 ms + 16 ms per channel maximum
**Tunable Filter Modules**
• Tuning Resolution: 0.05 nm typical
• Bandwidth (0.5-dB): 0.8 nm typical
• Repeatability (Absolute): ±0.05 nm typical
• Accuracy (Absolute): ±0.3 nm maximum
• Insertion Loss: 1.5 dB maximum
• Back-reflection: −50 dB maximum
• PDL: 0.05 dB typical
• Tuning Speed: 50–1400 ms
**Variable Attenuator Modules**
• Attenuation Range: 0–60 dB
• Resolution: Better than 0.15 dB
**Electrical**
• Input Voltage: 100–240 VAC
• Input Power: 150 W maximum
• Fuse: 2 A typical (2.5 A for 6U rack)
• AC Leakage: 3.5 mA maximum
**External Trigger**
• Logic High: 2–5 VDC
• Logic Low: 0–0.5 VDC
• Overload Protection: ±30 VDC continuous, ±10 kV ESD
**General Purpose Output**
• Logic High: 3–5 VDC
• Logic Low: 0–0.4 VDC
• Switching Time: 2 ms maximum (both edges)
• Output Current: 50 mA maximum
• Load: 50 ohm minimum
• Overload Protection: ±30 VDC continuous, ±10 kV ESD
## Key Features
• Supports multiple fiber types (SMF-28, Flexcor 1060, Polarization Maintaining Panda)
• Modular architecture—mix switch, filter, and attenuator functions in one unit
• High-density configuration: 30 tunable/variable modules + 64 binary switches per chassis
• Low PDL performance (0.05 dB singlemode) for polarization-sensitive applications
• Millisecond-class switching and trigger response
## Typical Applications
• Optical test and measurement systems
• Dynamic wavelength routing and selection
• Gain flattening and spectral shaping
• Component characterization and bench-top instrumentation
• Multi-wavelength and multi-path signal management
## Compatibility & Integration
The GP700 accommodates standard single-mode and multi-mode fibers, including Corning SMF-28, Flexcor 1060, and PM Panda variants. External control via TTL trigger inputs and general-purpose outputs enables integration with automated test equipment and host instrumentation. Scaling beyond single-chassis density is achieved through parallel housings.
