JDS Uniphase COSA-4055

The JDS Uniphase COSA-4055 is a compact optical subassembly (COSA) designed for high-performance optical transceivers. It integrates essential optical components to facilitate efficient light transmission and reception in optical communication systems. Ideal for applications requiring miniaturization and high signal integrity.

Model
JDS Uniphase COSA-4055
Calibration
Available on request
Price
$5,500
Status
In stock
RFQ ref
COSA-4055
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This unit

The COSA-4055 is a handheld CWDM Optical Spectrum Analyzer module designed for installation, maintenance, and network upgrades. It delivers complete spectral analysis in under 4 seconds, integrating full OSA functionality into a portable form factor compatible with T-BERD/MTS-2000 and T-BERD/MTS-4000 platforms. The module operates across the 1260 to 1625 nm wavelength range with -55 to +10 dBm measurement capability, making it a cost-effective solution for metro and access network testing.

Technical Specifications

Wavelength range: 1260 to 1625 nm

Dynamic range: -55 to +10 dBm

Noise floor: -55 dBm

Level accuracy: ±0.5 dB

Level linearity: ±0.1 dB

Resolution bandwidth: 4 nm

Optical return loss: >35 dB

Scan time: <4 seconds

Display: 7-inch TFT color

Operating temperature: -5 to +50°C

Storage temperature: -20 to +60°C

Module dimensions: 128 x 134 x 40 mm

Module weight: 0.35 kg

Key Features

ITU-T G.695 and G.674.2 compliant

Tunable channel grid supporting ITU-T G.694.2 CWDM wavelengths and custom grids

Complete spectral trace with tabular power and wavelength results

Zoom and marker functions for detailed analysis

Wavelength and power drift measurement

Automatic channel detection and pass/fail analysis against user-settable limits

Optional SFP bay (version 2301/02) hosts up to 2 SFP CWDM transceivers for insertion loss testing and end-to-end link continuity verification

Multiple optical connectors: FC/PC, SC, ST, DIN, LC

Typical Applications

Metro and access network performance verification

CWDM network maintenance and troubleshooting

Spectral and drift testing of CWDM sources

Vendor compatibility assessment

Insertion loss testing with simulated CWDM transmitters

End-to-end continuity checks in mux/demux and OADM networks

Compatibility & Integration The module integrates directly into T-BERD/MTS-2000 and T-BERD/MTS-4000 platforms, eliminating the need for standalone test equipment in field operations.

Specifications

ParameterValue
Power Range (dBm)'-55 to +10 dBm | Wavelength Range: 1260 to 1625 nm

Frequently Asked Questions

What does the JDS Uniphase COSA-4055 measure and what are its key specifications?
The COSA-4055 is a compact optical subassembly (COSA) engineered for high-performance optical transceivers, integrating essential optical components for light transmission and reception in telecom and datacom networks. It operates across the C-band and L-band window from 1260 to 1625 nm with a power measurement range of −55 to +10 dBm, making it ideal for applications demanding miniaturization and high signal integrity in optical communication systems.
What is the condition of this used COSA-4055, and what has been verified?
We have inspected this used unit for physical integrity, optical connector condition, and basic functional operation before listing. As a pre-owned instrument, it is offered as-is unless calibration certification is requested; we recommend calibration verification prior to deployment in metrology-critical environments to ensure measurement accuracy.
Is calibration available for the COSA-4055, and what does it cover?
Yes, calibration is available separately starting at $450 and covers verification of wavelength accuracy and power measurement linearity across the stated operating range. Turnaround time and detailed calibration scope can be confirmed upon request; we provide NIST-traceable documentation upon completion.
What interfaces and connectivity options does the COSA-4055 support?
The COSA-4055 is a passive optical subassembly and does not include direct digital interfaces such as GPIB, USB, or Ethernet; it is designed for integration into optical transceiver modules where host equipment manages signal acquisition and processing. Compatible drivers and software depend on the host system architecture—consult the OEM transceiver documentation for integration guidelines.

JDS Uniphase COSA-4055 — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the JDS Uniphase COSA-4055. Calibration covers wavelength accuracy at 850, 1310, 1550, and 1625 nm, power level accuracy, resolution bandwidth (RBW) accuracy, and dynamic range verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

Common JDS Uniphase COSA-4055 faults: wavelength motor failure, internal light source dimming, detector sensitivity loss. Common repairs include wavelength motor servicing, internal broadband source replacement, and detector recalibration after extended use.

JDS Uniphase COSA-4055 price

This JDS Uniphase COSA-4055 is listed at $5,500. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

JDS Uniphase COSA-4055 calibration cost

NIST-traceable calibration for the JDS Uniphase COSA-4055 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers wavelength accuracy at 850, 1310, 1550, and 1625 nm, power level accuracy, resolution bandwidth (RBW) accuracy, and dynamic range verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →

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