ROSA Receiver Optical Subassembly

https://www.lens66.com/products/rosa-receiver-optical-subassembly/

ROSA Optical Subassembly (Receiver Optical Subassembly), mainly composed of detectors and adapters, in high data rate optical fiber modules, usually PIN or ADP photodiode and TIA assembled in a sealed metal housing, The optical receiving component is mainly used to convert optical signals to electrical signals (O/E conversion), where the ROSA lens component usually encapsulates a microlens in a coaxial metal shell. Microlens using high temperature molding, the advantages of the receiver optical subassembly are low production cost, high precision, suitable for aspherical microlens mass production. ROSA lens assembly is one of the core components of a variety of optical systems, mainly used to convert optical signals into electrical signals (O/E conversion).
Product size indicator description:

Maximum dimension of ROSA lens assembly: OD≤φ20mm

ROSA lens assemblies can achieve the following accuracy levels according to customer requirements:

Ultra-high precision: surface shape error < 0.1μm, surface roughness < 0.01μm

High precision grade: Surface error < 0.5μm, surface roughness < 0.05μm Precision grade: Surface error < 1μm, surface roughness < 0.1μm

Surface defect grade: 60-40, 40-20, 20-10, 10-5 According to customer requirements.

Coating: Coating according to customer requirements.