Spectre
Precision, ultra-compact Integrated Photonics FBG interrogator
Spectre is an integrated photonics interrogator for Fiber Bragg Grating (FBG) sensors, providing real-time single- and multi-point strain and temperature measurements in a compact, lightweight, and robust form factor. The module integrates both optical signal generation and analysis on a single platform, combining an on-board light source with a reconfigurable optical filter to acquire the FBG response.
Depending on the selected FBG sensors, Spectre supports temperature measurements up to 800 °C and high-resolution strain and temperature monitoring. Data acquisition and processing are handled through proprietary software, digital interfaces, and APIs, enabling straightforward integration.
1 pm
5 dBm
power
8 W
Power Consumption
KEY FEATURES
Key Features and Benefits
4-Port Pluggable nanoOCM Performance & Integrability
PERFORMANCE
Real-time interrogation
PERFORMANCE
High-resolution strain
PERFORMANCE
Stable and repeatable
measurements enabled by integrated photonics
INTEGRABILITY
Compact design
INTEGRABILITY
Intrinsic immunity
INTEGRABILITY
Single module suitable
TECHNICAL DATA
4-Port Pluggable nanoOCM
Technical Specifications
1529-1567 nm
Sensitivity
Scan Frequency
Technology Inside
How it works
The Pluggable OCM integrates PhotonPath’s nanoOCM technology within a QSFP module. The incoming optical signal is split by an integrated 95/5 optical tap, with the monitoring portion routed to a proprietary photonic integrated filter implemented on a silicon photonic chip.
The filter consists of a patented filtering architecture made by a combination of interferometric elements, calibrated so that their combined transfer function selectively isolates narrow spectral segments of the input signal. The filter is tuned by controlled actuation of the individual elements to scan across the entire C-band. Following spectral isolation, the filtered optical signal is converted into an electrical signal by a high-precision photodiode and made available for processing by the module’s control electronics.
95/5
Integrated optical tap
Label 2
Data/Number
USE CASES
Applications & Network Impact
Spectre is used in distributed sensing systems based on Fiber Bragg Grating sensors, where accurate and real-time measurement of strain and temperature is required. Its compact architecture enables deployment in space and power-constrained environments such as automotive, avionics, industrial infrastructure, and energy and utility networks.
The intrinsic immunity of FBG-based sensing to electromagnetic interference allows reliable operation in electrically noisy and high-voltage environments, while the integrated interrogation approach simplifies system architecture and enables continuous monitoring in harsh operating conditions.
Real-Time Strain & Temperature Monitoring
Space & Power-Constrained Deployment
Electromagnetic Interference Immunity
PERFORMANCE
Pluggable nanoOCM
Performance
95/5 Integrated Tap
The module comprises a 95-5% tap, routing approximately 5% of the power to the nanoOCM and 95% through the pass-through path, making the QSFP OCM suitable for in-line DWDM applications.
Monitoring of ROADM nodes
Within a ROADM node, Pluggable nanoOCM monitors the DWDM channels along the add, drop, and through paths supporting node supervision, power balancing, and fault detection.
Real-time Monitoring
Ready to Integrate?