F i n i s a r
Preliminary Product Specification
4Gbps Long-Reach DWDM SFP Transceiver
FWLF1634Ryxx
PRODUCT FEATURES
• Up to 4.25 Gb/s bi-directional links
• Hot-pluggable SFP footprint
• Temperature-stabilized DWDM-
rated DFB laser transmitter
• 100GHz ITU Grid, C-Band
• Low dispersion DFB laser
• Extended operating range: -5°C to
70°C case temperature
APPLICATIONS
• Wavelength controlled within ± 0.1
nm over life and temperature
• Amplified DWDM networks
• Bandwidth aggregation
• Extended link budget with APD
receiver technology
• Ring topologies with fixed and
• 4x FC compliant
reconfigurable OADMs
• 1x/2x, GbE compliant*
• OC-48 LR-2 compliant*
Finisar’s Dense Wavelength-Division Multiplexing (DWDM) transceivers offer DWDM
transport with dramatically lower power and cost in a standard pluggable Small Form
Factor Pluggable (SFP) package1. The FWLF1634R is designed expressly for service
providers deploying DWDM networking equipment in metropolitan access and core
networks.
Basic digital diagnostic features for the FWLF1634R are implemented as described in
Finisar Application Note AN-2030, “Digital Diagnostic Monitoring Interface for Optical
Transceivers”4. Enhanced diagnostic features are available as described in the DWDM
SFP MSA6.
(*when ordered with rate selection option, and used in low rate mode)
Finisar Corporation
Rev C2, Feb.2009
PRELIMINARY
Page 1
FINISAR [ FINISAR CORPORATION. ]
