Data
sheet
www.bookham.com
Thinking optical solutions
www.bookham.com
Thinking optical solutions
1550nm filter for Passive
Optical Networks
CB WBD
The Bookham Technology solla-Q wide-band filter
family is based on thin-film interference filter
technology. A range of filter designs for passive
optical networks is available.
1550nm Bandpass filter for passive optical networks
This 1550nm bandpass filter is designed for minimization
of insertion loss variation across the passband around
1550nm. The filter also has 40dB isolation for signals at
1490nm or 1310nm.
Applications
The flat passband design allows for best performance in
analog video transmission. The deep reflection notch also
improves the isolation of 1550nm signals from the 1310nm
return signal and 1490nm downstream data. Similar filters are
available from Bookham Technology centered at 1490nm and
1310nm. This filter is especially useful at the Optical Line
Termination (OLT) found in passive optical networks for
multiplexing and demultiplexing.
Features
Flat passband design
Deep reflection notch
40dB+ isolation at 1490nm
and 1310nm
Low reflection loss at 1490nm
and 1310nm
Excellent temperature stability
-40 to 85C operating
temperature option
Compliance
Telcordia 1221
1550nm Bandpass, high isolation, low ripple
1550nm Bandpass Filter, passband detail
www.bookham.com
Thinking optical solutions
www.bookham.com
Thinking optical solutions
Preliminary Specifications*
Parameter / Definition
Symbol
Specification
Transmission Parameters
Filter Center Frequency F
cNON-ITU
F
c
193.414 THz (1550nm)
Transmission Pass Band Region
PB
T
PB
T
= F
c
PB
half
Transmission Passband Half-Width
PB
half
2.300 THz (~18.2nm)
Maximum Insertion Loss Over PB
T
(no connector loss included)
IL
max
0.7dB
Insertion Loss Variation Over PB
T
* IL
variation
= IL
min
- IL
max
IL
var
0.2dB
Polarization Dependent Loss (PDL) over PB
T
*
PDL
0.10dB
Adjacent Band Isolation*
I
AB
40dB
I
AB
= IL
min
(worst case insertion loss at AB
lower
or AB
upper
)
Lower Adjacent Band Region
AB
lower
(F
c
+ 6.448 THz) to
(F
c
+ 44.517 THz)
(1260 1500nm)
Reflected Parameters
Stop Band Region
SB
R
SB
R
= F
c
SB
half
Reflection Stop-Band Half Width
SB
half
2.300 THz (~18.2nm)
Stop Band Isolation over SB
R
*
I
SB
25dB
Maximum Insertion Loss at Adjacent Bands, AB
upper
IL
AC
0.5dB
Polarization Dependent Loss (PDL) Over AB
upper
*
PDL
R
0.10dB
Optical Return Loss Port 1,2 & 3
RL
port
50dB
Directivity Transmission port to Common port
Dir
50dB
Environmental Parameters
Operating Temperature
C
-5 to 70
Storage Temperature
C
- 40 to 85
Mechanical Parameters
Diameter
D
5.5mm
Over-all Length without boots
L
tube
34mm
Over-all Length with boots
L
total
58mm
Fiber Type
Smf-28
Fiber Length
> 0.8m
Specification Number
0184
Note: all parameters measured over the clear channel width, PBT, for all polarization states and environmental conditions.
*Contact Bookham Technology for your specific requirements.
www.bookham.com
solla-Q PON rev C10.03.0 Oct 2003
Bookham Technology 2003 Bookham is a registered trademark of Bookham Technology plc
North America
Bookham Technology Inc.
3640 West Wind Boulevard
Santa Rosa
CA USA 95403
Tel: (707) 636 1100
Fax: (707) 636 1199
Europe
Bookham Technology plc
Brixham Road
Paignton
Devon
TQ4 7BE
UK
Tel: +44 (0) 1803 66 2875
Fax: +44 (0) 1803 66 2801
Asia
Bookham Technology plc
Hong Kong Representative Office
Rm 2207-9
Tower 2
Lippo Centre
Admiralty, Central
Hong Kong
Tel: +852 2530 8822
Fax: +852 2530 8102
sales@bookham.com
Important Notice
Performance figures, data and any
illustrative material provided in this data
sheet are typical and must be specifically
confirmed in writing by Bookham
Technology before they become applicable
to any particular order or contract.
In accordance with Bookham Technology's
policy of continuous improvement
specifications may change without notice.
The publication of information in this data
sheet does not imply freedom from patent
or other protective rights of Bookham
Technology or others. Further details are
available from any Bookham Technology
sales representative.
Ordering Information
Sample: CBWBD 1550.116 0184
CB
WBD
Center Wavelength
1260.000 - 1640.000nm
Assigned
specification upon
order confirmation
including connector,
jacket and pigtail
information
Package Dimensions
PDF 
ZIP