The CoBrite DX1 is engineered for optical engineers, researchers, and telecom professionals who demand reliable performance without compromising space efficiency or budget. Whether you are testing Dense Wavelength Division Multiplexing (DWDM) channels, conducting coherent modulation research, characterising passive optical components, or building automated multi-channel setups, the DX1 delivers the right combination of tunability, power control, linewidth performance, and automation-ready connectivity.

What is a compact tunable laser source? A compact tunable laser source is a miniaturised optical instrument capable of continuously adjusting its output wavelength across a defined spectral range — in the case of the DX1, covering C-band (191.00–196.25 THz) and optionally L-band — while maintaining stable output power and phase characteristics. The “compact” designation refers specifically to its ultra-small physical form factor, which enables deployment in space-constrained environments where rack-mounted systems cannot fit.

How does the CoBrite DX1 differ from other tunable lasers? The CoBrite DX1 is unique in combining sub-25 kHz linewidth performance (N-Type) with a 0.5 kg, palm-sized chassis — a combination not commonly available in this price and size class. Most instruments achieving <25 kHz linewidth are rack-mounted, heavier, and significantly more expensive. The DX1 brings that specification into a USB-powered, bench-top package.

Engineered for Compact Versatility

Multiple Laser Types — Choose from N-Type (<25 kHz linewidth), S-Type (~80 kHz, high output power), or G-Type (balanced, general-purpose) for precisely tailored applications spanning coherent transmission, cost-effective telecom testing, and laboratory optical experiments.

Wide Frequency Tuning — Covers C-band, L-band, and optional C+L combined band with fine tuning resolution of 1 MHz (N-Type) or 10 MHz (S/G-Type), enabling wavelength-selective testing, ITU-T DWDM grid alignment, and advanced modulation experiments.

Ultra-Compact Design — At just 32 × 82 × 150 mm and 0.5 kg, the DX1 is the smallest tunable laser in its performance class. Its stackable form factor enables multi-channel setups on a single bench without rack space or additional infrastructure.

Precise Power Control — Adjustable output power (C-band: 10–16 dBm on N-Type, up to 17.8 dBm on S-Type; L-band: 9–14.5 dBm) ensures consistent, repeatable signal injection for lab, R&D, and production test environments.

USB Control and PC GUI — Intuitive software interface with a modern graphical UI, plus full SCPI command support for seamless automation with Python (PyVISA), LabVIEW (NI-VISA), MATLAB (Instrument Control Toolbox), and custom test frameworks.

Set-and-Forget Memory — Automatically stores the last operational state — including wavelength, output power, and mode — for fast repeat testing with minimal re-configuration between sessions.

Why It Delivers More

Application Flexibility

• N-Type: <25 kHz linewidth — ideal for coherent transmission, local oscillator applications, and interferometry where phase noise directly impacts measurement quality.
• S-Type: ~80 kHz linewidth with higher output power (up to 17.8 dBm) — optimised for DWDM testing, signal injection, and telecom component characterisation where power matters more than linewidth.
• G-Type: Balanced cost-performance for general-purpose labs, educational institutions, and manufacturing quality-control environments.

Compact Yet Powerful

• Smallest tunable laser in its performance class — only 0.5 kg and palm-sized.
• Stackable form factor: deploy multiple DX1 units side-by-side, all controlled from a single PC, for multi-channel test setups without a chassis or rack.
• Operates on 100–240 VAC input via compact 12 VDC / 10W adapter — fully compatible with Indian 230V/50Hz power supply.

Precision in Every Wavelength

• Tuning resolution down to 1 MHz (N-Type) for precise ITU-T G.694.1 DWDM channel alignment.
• Stable optical power output ensures repeatable, high-quality measurements across sessions and thermal cycles.
• Operating temperature range of 0–40°C covers standard lab, field, and production environments.

Seamless Integration

• Plug-and-play USB connectivity — no rack, no separate power supply chassis, no driver complexity.
• Full SCPI-style command set (N-Type and S-Type) enables integration into automated test sequences, production test lines, and research workflows.
• PC GUI supports manual control for hands-on lab use and SCPI interface for programmatic control — both available simultaneously.

DWDM Testing in Telecommunications

The CoBrite DX1 is a cost-effective solution for DWDM transport layer validation, providing precise wavelength control for channel-by-channel testing across the ITU-T G.694.1 C-band and L-band frequency grids. Engineers use it to:

• Inject stable, low-noise optical signals into DWDM multiplexers, demultiplexers, and reconfigurable optical add-drop multiplexers (ROADMs)
• Verify channel isolation, insertion loss, and crosstalk in arrayed waveguide gratings (AWGs)
• Validate optical filters, bandpass components, and WDM transceivers

The S-Type variant — with output power up to 17.8 dBm and C/C+L band coverage — is particularly suited to DWDM test environments requiring high signal-to-noise ratios and broad spectral reach.

Coherent Optical Transmission

In high-speed transmission systems using QPSK, 16-QAM, or 64-QAM modulation — the foundation of 100G, 400G, and 800G data centre interconnects and long-haul networks — the N-Type DX1 functions as:

• A phase-stable transmitter source with <25 kHz linewidth for coherent modulation experiments
• A local oscillator (LO) for coherent receiver sensitivity testing and homodyne/heterodyne detection
• A signal reference for IQ modulator characterisation and coherent DSP validation

Its sub-25 kHz linewidth ensures that the laser source does not become a limiting noise factor in advanced modulation format experiments.

Optical Research and Development

From quantum photonics to integrated photonics chip testing, researchers at IITs, national optical laboratories, and defence R&D establishments benefit from the DX1’s combination of spectral purity, compact form factor, and automation capability:

• Broad tunability (C-band, L-band, C+L-band) for wavelength-specific interferometry, spectroscopy, and sensing experiments
• SCPI automation for high-throughput parametric sweeps and scripted measurement sequences
• Compact, stackable design for shared bench space, mobile labs, and student-accessible setups

Optical Component Characterisation

Test and measurement engineers use the DX1 to characterise passive and active optical components across the C and L bands:

• Optical modulators, bandpass and notch filters, isolators, and amplifiers
• Waveguides, splitters, couplers, and fibre Bragg grating (FBG) sensors
• Silicon photonic chips, photonic integrated circuits (PICs), and InP-based components

Its combination of fine wavelength tuning (1 MHz resolution on N-Type), stable power output, and SCPI automation makes it suitable for both manual characterisation and automated swept-wavelength measurement setups.

Multi-Purpose Lab Source

Educational institutions, university photonics labs, and prototyping environments use the G-Type DX1 as a universal tunable laser tool for:

• General optics and photonics teaching experiments
• Wavelength sweep demonstrations and DWDM grid visualisation
• Optical alignment, beam characterisation, and component evaluation procedures

Its low cost, compact size, and simple USB interface make it the most accessible entry point to professional-grade tunable laser measurement in academic environments.

United Spectrum Instruments is the official authorised distributor of the CoBrite DX1 by ID Photonics GmbH in India, providing comprehensive pre-sales consultation, application-specific configuration guidance, and full after-sales technical support for test labs, telecom networks, and R&D setups across the country.

What this means for you as a buyer:

• You receive genuine, warranty-backed CoBrite DX1 instruments — not grey-market or refurbished units
• Full manufacturer (ID Photonics GmbH) support is behind every sale, accessed through our team
• GST-compliant, MSME-registered procurement with full documentation for institutional purchase orders

Our technical support covers:

• Pre-sales variant selection: N-Type vs S-Type vs G-Type, band configuration, and power requirements
• Integration assistance for Python, LabVIEW, and MATLAB automation
• After-sales support for calibration, SCPI command queries, and software troubleshooting