Synchro-scanned rotating tunable optical disk filter for wavelength discrimination

Katagiri, Yoshitada; Tachikawa, Y.; Aida, Kô; Nagaoka, Shiro; Ohira, Fumikazu

doi:10.1109/68.661423

Cited by 9 publications

(4 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Optical spectrum analyzers with gratings are the most promising option, but they are too large and costly, and therefore not viable. Here, we propose a critical disk-shaped wavelength-tunable band-pass filter technology [13]. This device technology enables the practical implementation of the autonomously controlled WDM systems described in the following section.…”

Section: Architecturementioning

confidence: 99%

“…The temperature dependency of the transmission wavelength can be compensated for using a calibration table. Figure 4 shows a schematic structure of a disk-shaped wavelength-tunable optical band-pass filter [13]. This filter consists of stable multiple dielectric layers, and a center wavelength that is basically dependent on the rotation angle of the disk, which can be absolutely controlled using a built-in rotary encoder and calibration data.…”

Section: Dielectric Filters For Absolute Wavelength Controlmentioning

confidence: 99%

See 1 more Smart Citation

Metamorphic network systems based on autonomous WDM devices

Kamatani

Hashimoto

Katagiri

et al. 2004

Optomechatronic Micro/Nano Components, Devices, and Systems

View full text Add to dashboard Cite

We propose a metamorphic network system, based on autonomously controlled wavelength division multiplexed devices. We will address the issue of how to assure and manage wavelength accuracy and controllability over the whole network to implement practical optical path routed networks. Our solution uses smart devices with wavelength calibration tables to construct systems that can be self-controlled according to their own stored physical layer information. The devices are interactive and share renewable information and are therefore useful for realizing selfreconfigurable (metamorphic) network systems. To verify the proposed architecture, we performed practical examinations using subsystems with wavelength-managed 'disk filters' in a field trial (Chitose trial).

show abstract

Section: Architecturementioning

confidence: 99%

Section: Dielectric Filters For Absolute Wavelength Controlmentioning

confidence: 99%

Metamorphic network systems based on autonomous WDM devices

Kamatani

Hashimoto

Katagiri

et al. 2004

Optomechatronic Micro/Nano Components, Devices, and Systems

View full text Add to dashboard Cite

show abstract

“…Optical spectrum analyzers using gratings were the most promising, but they were too large and costly, which was not acceptable. We propose a disk-shaped wavelength-tunable bandpass filter [4] as a candidate (Fig. 4).…”

Section: Absolute Wavelength Controlmentioning

confidence: 99%

Autonomic control of photonic networks based on absolute wavelength management

Katagiri

Hashimoto

2002

Optomechatronic Systems III

View full text Add to dashboard Cite

A autonomic network control scheme is presented for wavelength-division multiplexing (WDM) based photonic networks. An absolute wavelength control scheme using a disk-shaped wavelength tunable optical bandpass filter is presented. The wavelength reproducibility of 0.02 nm for the entire tuning range at various temperatures is promising for the autonomic wavelength management. To verify the control scheme, an optical add/drop multiplexing (OADM) subsystem is constructed using optical switches utilizing oil latching interferential tension effect (OLIVE) and wavelength-tunable devices. Its detailed operating performances are experimentally evaluated. The switching speed of <20 ms and extinction ratios of <45 dB of the switching element are allowable in practical systems. Error-free transmission performance at 10 Gbps with negligible coherent cross talk at an intersection of the switch is obtained. The optical carriers generated by a wavelength-tunable ring laser using a disk filter, are allowable for data transmissions. These results show that the autonomic network control scheme is feasible.

show abstract

“…Tunable filters, such as optical disk filter, have already realized high performance; wide tunable range over 80 nm, high repeatability and good thermal stability for dense WDMchannel selection, except pass-band width and stop-band rejection [2][3] [4]. A tunable WDM receiver will be required to employ special configuration to enhance selectivity oftunable filters for ultra dense WDM application.…”

Section: Introductionmentioning

confidence: 99%

Novel receiver scheme for optical packet ultradense WDM systems

Aida

2001

SPIE Proceedings

View full text Add to dashboard Cite

We propose a scheme for reduction of cross-talk arising from stop-band rejection limitation of optical band-pass filters in a wavelength-division multiplexing (WDM) receiver. Experiment confirms high selectivity of the receiver and reveals feasibility of optical packet ultra dense WDM systems spaced by several GHz.The receiver consists of optical switches at input and output ports of a fiber loop, which contains fiber delay line, tunable optical band-pass filters, an erbium-doped fiber amplifier, and an optical switch.Target packet is selected from input optical packet WDM signals by time and wavelength windows realized by the optical switches at the input and output ports ofthe fiber loop, and the tunable filters in the loss compensated fiber loop, respectively. The selectivity is measured by using pulsed lightwave sweep frequency, which contains 7 frequencies in 500MHz step. The results show 11dB suppression for signals 2 GHz apart from the target channel after 10 circulation, and 12dB suppression for signals 1 .5 GHz apart from the target channel after 18 circulation.Details of the receiver configuration, pulsed lightwave sweep frequency generator and experimental results are discussed.Keywords: dense WDM, tunable filter, fiber loop, packet, EDFA, receiver performance to demultiplex ultra dense WDM. Cross-talk arising from stop-band rejection limitation of optical band-pass filters restricts lightwave frequency spacing of channel allocation. Commercially

show abstract

Synchro-scanned rotating tunable optical disk filter for wavelength discrimination

Cited by 9 publications

References 13 publications

Metamorphic network systems based on autonomous WDM devices

Metamorphic network systems based on autonomous WDM devices

Autonomic control of photonic networks based on absolute wavelength management

Novel receiver scheme for optical packet ultradense WDM systems

Contact Info

Product

Resources

About