VIAVI MAP continuously tunable laser source (mTLS) cassette module
mTLS-C2

VIAVI MAP mTLS-C2 Continuously Tunable Laser Source Module

Three-slot MAP cassette providing a mode-hop-free, PM-fiber coupled continuously tunable laser in the C/L-band or O-band.

Tuning Range
1480 to 1635 nm
Tuning Range
1255 to 1350 nm
Accuracy
±100 pm
Accuracy
±500 pm
Datasheet

Overview

The VIAVI mTLS-C2 is a continuously tunable high-power laser source for general purpose applications in DWDM, optical amplifier and silicon photonic testing. It is a three-slot cassette for the Multiple Application Platform (MAP) and is offered in a C/L-band variant and an O-band variant. It is intended for R&D, new product introduction and volume manufacturing, and works alongside the other modules of the MAP family.

Tuning and power control

The laser tunes with picometer resolution, mode-hop free, across 1480 nm to 1635 nm (C/L-band) or 1255 nm to 1350 nm (O-band). Output power is set with an embedded variable optical attenuator (VOA) instead of current tuning. This keeps the output stable and the ASE level low across all power and wavelength settings. The output is coupled to polarization-maintaining fiber, so waveguide characterization does not need extra polarization controllers.

Chassis integration

The module fits in the MAP-330 or MAP-380 chassis and works with all current MAP-300 chassis. In a MAP-330 it is a compact standalone source. A MAP-380 leaves five more application slots for optical switches, power meters, optical spectrum analyzers and signal conditioning modules. The mTLS-C2 complements the high-density mTLG-C2 grid tunable laser: the difference is that it tunes continuously across its wavelength range.

Software and automation

The LXI-compliant MAP chassis has a graphical user interface with a summary view and a detailed module view. A full SCPI command line interface and IVI-compliant drivers are available for test automation.

Key Features

  • C/L-band and O-band variant continuously tunable source cassettes
  • Mode-hop free tuning
  • PM-fiber coupled output
  • 1 MHz linewidth
  • 3-slot cassette compatible with MAP-300 chassis
  • High output power of 11.5 dBm with low ASE noise floor
  • Embedded VOA for precision power control
  • Sweeping and setting operation
  • LXI compliant with IVI drivers
  • Full SCPI command line interface

Specifications

Wavelength
Tuning Range
MTLS-C2CL1-M103-MFA
1480 to 1635 nm
Tuning Range
MTLS-C23A-M103-MFA
1255 to 1350 nm
Accuracy
MTLS-C2CL1-M103-MFA
±100 pm
measure at 9.5 dBm at 1500- 1635 nm
Accuracy
MTLS-C2CL1-M103-MFA
±500 pm
measure at 7.5 dBm at 1480- 1500 nm
Accuracy
MTLS-C23A-M103-MFA
±100 pm
measured at 9 dBm in Operating temperature
Accuracy
MTLS-C23A-M103-MFA
±30 pm
measured at 9 dBm at 25°C
Stability 1 Hour ±5 pm
measured at 9 dBm; ± 0.5°C
Wavelength Resolution 1.0 pm
Power
Maximum Output Power
MTLS-C2CL1-M103-MFA
> 11.5 dBm
1519 to 1635 nm
Maximum Output Power
MTLS-C2CL1-M103-MFA
> 9.5 dBm
1500 to 1635 nm
Maximum Output Power
MTLS-C2CL1-M103-MFA
> 7.5 dBm
full range
Maximum Output Power
MTLS-C2CL1-M103-MFA
> 15 dBm
typical (@ 1580 nm)
Maximum Output Power
MTLS-C23A-M103-MFA
≥ 11 dBm
peak (Operating temperature)
Maximum Output Power
MTLS-C23A-M103-MFA
≥ 9 dBm
full tuning range (Operating temperature)
Maximum Output Power
MTLS-C23A-M103-MFA
≥ 12 dBm
peak (25°C)
Maximum Output Power
MTLS-C23A-M103-MFA
≥ 9 dBm
for 1260-1350 nm (25°C)
Stability 15 Minutes ±0.01 dB
Setting Resolution 0.01 dBm
Spectral Properties
Linewidth < 2 MHz; ≤ 1000 kHz (Coherence Control OFF); ≥ 30 MHz (Coherence Control ON)
The datasheet table does not clearly assign these values to the C/L-band or O-band column; the web page states 1MHz linewidth
SMSR > 75 dB
RIN < -135 dB/Hz
0.1 GHz to 2.5 GHz at 1575 nm or at 1305 nm for O-band source
Power Flatness Under Stepping ±0.25dB
Polarization Extinction Ratio Minimum: > 17 dB; Typical: > 20 dB
At all powers and wavelengths; the datasheet lists Minimum > 17 dB for both variants and Typical > 20 dB without a clear column assignment
General
Calibration Period 1 year
Laser Safety Class 1M
Class 1M Laser Product (IEC 60825-1)
Physical/Environment
Fiber Type PMF; Polarization aligned to slow axis
Polarization aligned to slow axis and connector
Connector Type(s) FC/APC
Warm-Up Time < 1 hour
Operating Temperature 15°C to 40°C
Operating Humidity <80% RH, non-condensing
Storage Temperature -35°C to 70°C
Dimensions (W x H x D) 12.2 x 13.0 x 34.8 cm
Weight 6.065 kg

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

Applications

  • Optical amplifier testing (gain and noise figure)
  • Channel monitor calibration
  • DWDM components testing
  • Circuit pack path loss calibration
  • Silicon photonic waveguide loss measurements

Options & Accessories

Option Description
MTLS-C2CL1-M103-MFA C- and L-band Continuously Tunable Laser, PMF FC/APC — Available configuration
MTLS-C23A-M103-MFA MAP-Series O-band Continuously Tunable Laser PMF — Available configuration

Documents & Resources