Data
sheet
www.bookham.com
Thinking optical solutions
www.bookham.com
Thinking optical solutions
terra-Q 50GHz filters
terra-Q 50
The Bookham Technology terra-Q narrowband
filter product line is based on thin-film interference
technology. These filters are produced with
Bookham Technology's proprietary Advanced
Energetic Deposition (AED) III technology.
terra-Q 50 filters
Bookham Technology offers a range of filtering solutions
for 50GHz channel spacing. One grouping of specifications
is intended for mux/demux applications where transmission
and reflection loss are key parameters. Higher performance
versions are available for optical add and drop multiplexing
where deeper reflection notches are required
Variable or Fixed Angle of Incidence
The lowest cost solution uses a variable angle of incidence
package and a wider center wavelength tolerance. Fixed
angle of incidence solutions are available with customer
specified center wavelength tolerance.
Features
C or L-band center wavelengths
Variable or fixed angle
of incidence
Standard or Wide-Top
passbands
Large adjacent channel isolation
Deep reflection isolation
Preliminary Specifications*
Parameter
Symbol
Unit
Variable AOI
Fixed AOI
Transmision Parameters
Center Wavelength at 0
c
nm
1460-1640
1460-1640
angle of incidence (AOI)
c
Tolerance
nm
c
0.035
c
0.02
Transmission Pass Band
PB
T
nm
c
0.13
c
0.14
-0.5dB Bandwidth
BW
0.5
nm
> 0.26
> 0.28
Maximum Loss over PB
T
IL
max
dB
< 1.0
< 1.0
Loss Variation over PB
T
IL
var
dB
< 0.50
< 0.50
Adjacent Channel Region
AC
nm
c
0.29
c
0.29
Adjacent Chan. Isolation
I
AC
dB
25
25
PDL over PB
T
PDL
T
dB
< 0.10
< 0.10
Center Wavelength Temperature Coefficient
T
c
pm/C
< 0.50
< 0.50
Reflection Parameters
Reflection Stop Band
SB
R
nm
c
0.08
c
0.08
Stop Band Isolation
I
SB
dB
12.5
12.5
Anti-Reflection Reflect.
AR
%
< 0.20
< 0.20
PDL over Adjacent Chan.
PDL
R
dB
< 0.10
< 0.10
Directivity
Dir
dB
> 45
> 45
Mechanical/Environmental
Dimensions (L x W x T)
LWT
mm
2.3 x 2.3 x 1.9
2.3 x 2.3 x 1.9
Backside Wedge Angle
Wedge
Deg
0.25
0.25
Operating Temperature
T
op
C
- 5 to 70
- 5 to 70
Specification Number
0134
0162
* Contact Bookham Technology for your specific requirement
www.bookham.com
Thinking optical solutions
www.bookham.com
Thinking optical solutions
Typical Wavelength Versus Temperature
terra-Q 50 transmission and reflection
terra-Q 50 transmission and reflection
www.bookham.com
terra-Q50 T6.03.0 August 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
Email: sales@bookham.com
Europe
Bookham Technology plc
Brixham Road
Paignton
Devon
TQ4 7BE
UK
Tel: +44 (0) 1803 66 2875
Fax: +44 (0) 1803 66 2801
Email: sales@bookham.com
Asia - Sales Representatives
Luy Broadband
Beijing
China
Tel: +86-10-6848 2508/2504
Fax: +86-10-6848 5151
Email: james.zhang@LuY-tech.com
Hana Enterprise
Suwon
S. Korea
Tel: +82-31-204 3505
Fax: +82-31-204 3506
Email: sein33@netian.com
Astra
Tokyo
Japan
Tel: +81-3-3490 3801
Fax: +81-3-5434 658
Email: iwaki@astrainc.co.jp
Emerald International Ltd.
Hsin Chu
Taiwan
Tel: +866-3-520 5920
Fax: +886-3-520 5697
Email: michao_1999@yahoo.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: TF050 1550.116 0134
TF050
ITU Center Wavelength for
Transmitted Band
Assigned Specification
Upon Order
Confirmation
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