OSA: SMSR Measurement of High-Power O-band Lasers for Optical Transceivers

Optical transceivers are one of the indispensable key devices for optical communications that interconvert optical and electrical signals. There are various types of optical transceivers: SFP, QSFP, 200GbE, 400GbE, and other network standards.

In recent years, optical transceivers have become increasingly high-power to extend communication distance. To accomplish this, the laser in an optical transceiver must have a longer cavity length to achieve high power capability, which causes side mode wavelengths close to the main signal.

This increases the need for high resolution/high dynamic range in SMSR  (Side Mode Suppression Ratio) measurements. The AQ6380, which offers high resolution and wide dynamic range, is the perfect solution for SMSR measurements of  O-band lasers for 400GbE QSFP-DD optical transceivers.

*Noise generated due to the measurement principle of the instrument and not contained in the light under test.

AQ6380 Optical Spectrum Analyzer