Fiber Optic Attenuator is a passive device used to reduce the amplitude of a light signal without significantly
changing the wave form itself. This is often a requirement in Dense Wave Division Multiplexing(DWDM) and
Erbium Doped Fiber Amplifier(EDFA) applications where the receiver cannot accept the signal generated from
a high-power light source.
HNK attenuator feature a proprietary type of metal-ion doped fiber which reduces the light signal as it passes
through. This method of attenuation allows for higher performance than fiber splices or fiber offsets or fiber
clearance, which function by misdirecting rather than absorbing the light signal. HNK attenuator are capable
of performing in the 1310nm and 1550nm.
HNK attenuator are capable of withstanding over 1W of high power light exposure for extended periods of
time, making them well-suited to EDFA and other high-power applications.Low Polarization Dependent Loss
(PDL) and a stable and independent wavelength distribution makes them ideal for DWDM.
Complied with or exceeds Standard
. Telcorida GR-326-CORE(ferrule end face quality compliant)
. Telecordia GR-910-CORE
. EC 60874-7, F01(JIS C5970) TIA/EIA-604-4A
. TIA/EIA-568B-B.3 Fiber Optic Cabling Components Standard
. EEE802.3z Standards for Fiber Optic Cabling
. RoHS Approved for European Market Requirements
Features
. Precise attenuation level(with 1dB,2dB,3dB... to 30dB, typical 5dB, 10dB 15dB)
. Inline design is easy to use (plugs between existing fiber jumper & equipment)
. Portable, Easy installation, Readily panel mountable
. High Quality Return loss 60db or Greater
. Custom designed specifications
. Dual wavelength (1310nm/1550nm)
. Attenuators marked with attenuation level
Application:
. Telecommunication networks . Passive Optical Networks
. Date networks . CATV & LAN
Appearance:
Specifications:
| Characteristics |
Unit |
Conditions |
Values |
| Attenuation |
dB |
UPC |
1 ~ 30 |
| APC |
1 ~ 20 |
| Return Loss |
dB |
UPC |
≥50 |
| APC |
≥60 |
| Operating Wavelength |
nm |
- |
1310 and 1550, 1240 - 1600 |
| Attenuation Accuracy |
- |
1 ~ 4dB |
<0.5dB |
| 5 ~ 30dB |
<10% |
| Operating Temperature |
°C |
- |
-40 ~ +75 |
| Storage Temperature |
°C |
- |
-40 ~ +85 |
| Polarization Dependent Loss |
dB |
- |
<0.2 |
| Relative Humidity |
% |
75°C |
95 |
Ordering Information
Using the available configurations amend/create product codes using the formula below.
Part Number: XX-AA-(BB)-CDE
Ordering Guide
| XX |
Attenuator Type |
FAT, MAT, OAT |
| AA |
Connector Type (Female or Male ) |
FP,SP,SA,LP |
| BB |
Connector Type ( Female) |
FP,SP,SA,LP |
| C |
Fiber Type |
OM1=Multimode 62.5, OM2=Multimode 50, SM=Singlemode |
| D |
Attenuation Value(dB) |
01~30dB |
| E |
Material |
M=Metal, P=plastic |
Attenuator Type Code
| FAT |
Female to Female Attenuator (Adapter Type) |
| MAT |
Male to Female Attenuator |
| OAT |
Adjustable Attenuator |
Connector Type Code
| FP |
FC/PC,FC/UPC |
FA |
FC/APC |
| SP |
SC/PC, SC/UPC |
SA |
SC/APC |
| TP |
ST/PC, ST/UPC |
TA |
ST/APC |
| LP |
LC/PC, LC/UPC |
LA |
LC/APC |
| MU |
MU |
MT |
MTRJ |
| DN |
DIN |
E2 |
E2000 |
Audited Supplier 
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