A high performance tunable optical filter based on cascaded polarization interference filter
Chinese Optics Letters, Vol. 2, Issue 1, pp. 15-17 (2004)
Acrobat PDF (453 KB)
Abstract
A new kind of tunable optical filter is proposed for DWDM optical communication application. It is based on cascaded polarization interference filter (PIF). The period and bandpass width of each PIF are decided by its optical path difference between o-ray and e-ray (OPDOE). When their OPDOEs are proportionately designed, the tuning range and bandpass width depend on OPDOE in the first and the last PIF, respectively. The tuning range, bandpass width and crosstalk are independent each other. The crosstalk is related to the OPDOE ratios among PIFs and can be suppressed by designing the PIF's OPDOE. A set of OPDOE is suggested that are l_1, 2* l_1, 2^2* l_1, 2^3* l_1, 2^4* l_1, ..., 2^{N-4}* l_1, 15*2^{N-7}* l_1, 10*2^{N-6}* l_1 and 2^{N-2}* l_1 from the first to the last. This suggested OPDOEs can yield -50-dB crosstalk for any tuning range and bandpass width. The insert loss is less than 1 dB. As its loose alignment requirement, there is no limitation on cascaded PIF number. When 11 PIFs are cascaded, it can achieve 170-nm tuning range, -50-dB crosstalk, bandpass width applicable to 25-GHz channel spacing and 1 dB insert loss.
© 2005 Chinese Optics Letters
OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(120.2440) Instrumentation, measurement, and metrology : Filters
Citation
Zongfu Hu, "A high performance tunable optical filter based on cascaded polarization interference filter," Chin. Opt. Lett. 2, 15-17 (2004)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-2-1-15
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Long-period fiber gratings based on periodic microbends (OL)
- Optical-carrier-frequency detection using a synchroscan disk-shaped optical filter embedded in bidirectional fiber delay line for superdense WDM network systems (JON)
- Temperature-compensated, highly accurate wavelength-tunable filters for photonic networks (JON)
- All-fiber comb filter with tunable free spectral range (OL)
- All-fiber add-drop filters based on microfiber knot resonators (OL)
Related Conference Papers
- To improve directly modulated fiber optical CATV system performances by using split-band and optical VSB modulation techniques
- 1.83-µs Wavelength-Transparent All-Optical Delay
- 1.83-µs Wavelength-Transparent All-Optical Delay
- Monolithic Silicon Coherent Receiver
- Monolithic Silicon Coherent Receiver
- 32Tb/s (320x114Gb/s) PDM-RZ-8QAM Transmission over 580km of SMF-28 Ultra-Low-Loss Fiber
- 32Tb/s (320x114Gb/s) PDM-RZ-8QAM Transmission over 580km of SMF-28 Ultra-Low-Loss Fiber
- 13.5-Tb/s (135 x 111-Gb/s/ch) No-Guard-Interval Coherent OFDM Transmission over 6,248 km Using SNR Maximized Second-Order DRA in the Extended L-Band
- 13.5-Tb/s (135 x 111-Gb/s/ch) No-Guard-Interval Coherent OFDM Transmission over 6,248 km Using SNR Maximized Second-Order DRA in the Extended L-Band
« Previous Article | Next Article »
OSA is a member of 