The IQS-2400 WDM Laser Source offers high accuracy and stability for testing the power and spectral sensitivity of active components, passive components and WDM building blocks.

Unequaled long-term wavelength stability
The IQS-2400 emulates ITU-T channels in dense WDM applications such as multiwavelength network simulation, simultaneous multiple inputs for EDFA characterization and insertion loss measurement of DWDM passive components. This source is ideal for the production environment offering unmatched, long-term wavelength stability. The ±0.01 nm absolute accuracy enables the IQS-2400 WDM Laser Source to replace a wavelength measurement instrument when testing components or systems. The IQS-2400 features wavelength-tuning capabilities around each of the ITU-T grid wavelengths, dithering up to 300 kHz with a triangular or square waveform, and an output power reaching 13 dBm with a 10 dB attenuation range. DFB laser diode manufacturers have the option of providing their own DFBs.

Multifunctional flexibility to match your needs
The IQS-2400 WDM Laser Source can operate in four different modes: Normal, High-Wavelength Stability, Dithering, and On/Off. Normal mode provides access to total wavelength and power tuning ranges, maintaining full control of the output power (automatic power control). From a set point in wavelength and power levels, High-Wavelength Stability mode provides finer wavelength and power tuning resolutions through laser temperature steps of 0.01 C and laser current steps of 0.01 mA. This mode operates the laser at a constant current (automatic current control). Since the central wavelength may drift slightly (due to aging) in Normal mode, High-Wavelength Stability mode allows for continuous access to long-term, high-accuracy wavelength set points. The last two modes, On/Off and Dithering, provide modulation capabilities from 10 Hz to 300 kHz. On/Off mode ensures maximum optical extinction when activated, while Dithering mode adds a small waveform (triangular or square) to the CW signal, thus reducing the signal coherence length. In On/Off mode, several sources can be synchronized from an external TTL signal generator or from any module’s synchronization output. Therefore, each source can operate at a different frequency and amplitude or precisely in phase.

Versatile and reliable EDFA and WDM testing
Combine more than one modular IQS-2400 WDM Laser Source with an IQS-3150-B Variable Attenuator or IQS-3150-BI Variable Attenuator (with integrated power meter), an IQS-1700X Power Meter and an IQS-5240B Optical Spectrum Analyzer in an IQS-500 Intelligent Test System. This setup enables precise, stable tones at every attenuation step throughout the complete WDM spectrum. Automatic tone balancing avoids the time-consuming and tedious manual adjustments that were once necessary to obtain a uniform input comb.