VIAVI OSA-610B High-Resolution Optical Spectrum Analyzer Module for 400G Flex-Grid/Nyquist DWDM

High-resolution field OSA module with ±3 pm wavelength accuracy for spectral analysis of 10/40/100G and 400G DWDM networks.

Optical frequency (wavelength) range: 196.65 - 190.7 THz (1524.5 - 1572.06 nm)
Absolute uncertainty of frequency (wavelength): ±370 MHz (±3 pm)
Frequency resolution: 300 MHz (2.4 pm)
Minimum signal separation: 2 GHz (16 pm)

Datasheet

Overview

The VIAVI OSA-610B is a high-resolution optical spectrum analyzer module for the spectral analysis of 10/40/100G and 400G DWDM transmission signals. It is designed as a compact instrument for both laboratory and field use.

Measurement principle

The module is based on coherent detection techniques, which give it a frequency resolution of 300 MHz (2.4 pm) and an absolute wavelength uncertainty of ±3 pm. According to VIAVI, its wavelength accuracy is 5 to 10 times better than that of traditional OSAs. This allows it to characterize the power level and frequency of optical signals in detail, including Nyquist WDM signals and the narrow guard-bands of compressed 400G super-channels.

Measurements and design

The OSA-610B covers an extended C-band acquisition range of 1524.5 to 1572.06 nm. It measures frequency, power level and OSNR, and can also measure side-mode suppression ratio. The design is protected by US patent 8,693,512 and has no moving parts, which suits it to field use.

The module runs on VIAVI T-BERD/MTS-6000A, T-BERD/MTS-8000 and OneAdvisor 800 platforms. It ships with either a PC or an APC optical interface.

Key Features

Coherent detection with 300 MHz (2.4 pm) frequency resolution
±3 pm absolute wavelength accuracy
Extended C-band acquisition range (1524.5-1572.06 nm)
Frequency, power level and OSNR measurement
Side-mode suppression ratio measurement capability
Fully analyzes 400G Nyquist WDM signals
Separates and analyzes narrow guard-bands in compressed super-channels
Rugged field design with no moving parts
Patented design (US patent 8,693,512)

Specifications

Optical Performance

Optical frequency (wavelength) range	196.65 - 190.7 THz (1524.5 - 1572.06 nm) Typical at 25°C
Absolute uncertainty of frequency (wavelength)	±370 MHz (±3 pm) Over the entire frequency range, coarse mode disabled; average of 5 consecutive sweeps
Frequency resolution	300 MHz (2.4 pm)
Minimum signal separation	2 GHz (16 pm)
Input power range (in 300 MHz bandwidth)	-65 dBm to +10 dBm Power of unmodulated single-frequency laser or peak power of modulated signal in 300 MHz optical bandwidth
Max. safe total input power	+17 dBm Total power for all input signals
Close-in dynamic range	>40 dB at ±8 pm (±1 GHz); >50 dB at ±16 pm (±2 GHz)
Noise floor	-84 dBm
Spurious-free dynamic range	>45 dB
Absolute uncertainty of power level	±0.5 dB Over the entire frequency range, coarse mode disabled; average of 5 consecutive sweeps; at –20 dBm input power
Display resolution	0.01 dB
Return loss	>50 dB
Measurement time	minimum 1 s (per channel) Over 50 GHz sweep range, no averaging
Measurement statistics	Delta wavelength, delta power, delta OSNR

Optical Interfaces

Input	SMF9/125 µm single-mode fiber
Interchangeable optical connectors	FC, SC, DIN

General

Weight	500 g (1.1 lb)
Dimensions (w × h × d)	213 x 124 x 32 mm (8.38 x 4.88 x 1.26 in)

Environmental

Operating temperature	0°C to +40°C (32°F to 104°F)
Storage temperature	−20°C to +60°C (−4°F to 140°F)
Humidity	95% without condensing
EMI/ESD	CE compliant

Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.

Applications

Testing DWDM components and systems in the C-band
Qualification of 10/40/100/400G components and systems
Validation and deployment of 100G and 400G Flex-Grid DWDM systems
Qualification of Nyquist signals and super-channels
Characterization and verification of optical transmitter center wavelength
Qualification of Flex-Grid wavelength selective switches and ROADMs with 3.125 GHz granularity and below

Options & Accessories

Option	Description
EOSA610B-PC	High-resolution spectrum analysis module with extended C band - PC
EOSA610B-APC	High-resolution spectrum analysis module with extended C band - APC