Appendix C: Acronyms
629
(continued)
FSR
Free spectral range
FTTH
Fiber to the home
FTTP
Fiber to the premises
FTTx
Fiber to the x
FWHM
Full-width half-maximum
FWM
Four-wave mixing
GE-PON
Gigabit Ethernet PON
GFF
Gain-flattening filter
GPON
Gigabit PON
GR
Generic Requirement
GUI
Graphical user interface
GVD
Group velocity dispersion
HDLC
High-Level Data Link Control
HE
Hybrid magnetic-electric mode
HFC
Hybrid fiber/coax
IEC
International Electrotechnical Commission
IEEE
Institute for Electrical and Electronic Engineers
ILD
Injection laser diode
IM
Intermodulation
IMD
Intermodulation distortion
IM-DD
Intensity-modulated direct-detection
IP
Internet Protocol
ISI
Intersymbol interference
ISO
International Standards Organization
ITU
International Telecommunications Union
ITU-T
Telecommunication Sector of the ITU
LAN
Local area network
LEA
Large effective area
LED
Light-emitting diode
LO
Local oscillator
LP
Linearly polarized
MAN
Metro area network
MCVD
Modified chemical vapor deposition
MEMS
Micro electro-mechanical system
MFD
Mode-field diameter
MIB
Management information base
MQW
Multiple quantum well
(continued)