Optical Sub-Assemblies


MACOM’s optical sub-assemblies (OSA) are focused on enabling our customers high performance/high bit rate optical transceivers operating at 100G and beyond. Our current 100G TOSA integrates 4 channels of 25/28G DFB lasers or EML’s with driver IC and a low loss optical MUX.  Our current 100G ROSA integrates four PIN photo-detectors, a quad TIA, and a low loss optical DEMUX. MACOM’s optical sub-assemblies are key components servicing the next generation metro/longhaul networks, datacenter interconnect (DCI) applications, mobile backhaul networks, and high end router/switch applications.

Product Categories

Transmitter Optical Sub-Assembly (TOSA)
Receiver Optical Sub-Assembly (ROSA)


PIN Receiver Module 4 ch, 28 Gbps, LAN-WDM DEMUX Integrated 100 GE

The FBR4102PB is a 4 x 25G/28G 1310nm LAN-WDM Receiver Optical Sub-Assembly (ROSA), consisting of an Optical Demultiplexer to separate 4 wavelength light signals, and more. 


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