1. A rotation sensor comprising:
a light source;
a coupler for splitting light from the light source into a first beam and a second beam;
a first light guide having an introduction point and an end, the first light guide formed in a spiral shape and having a photonic crystal structure receiving the first beam at the introduction point of the first light guide, the photonic crystal structure of the first light guide being a plurality of pillars, positioned transverse to propagation of the first beam, and a pair of crystal slabs, for creating a predefined path for the first beam;
a second light guide having an introduction point and an end, the second light guide formed in a spiral shape adjacent and concentric with the first light guide in the same plane as the first light guide, the second light guide having a photonic crystal structure receiving the second beam at the introduction point of the second light guide, the photonic crystal structure of the second light guide being a plurality of pillars, positioned transverse to propagation of the second beam, and a pair of crystal slabs, for creating a predefined path for the second beam; and
a turn at the end of the first light guide connected to the end of the second light guide.
2. The sensor of claim 1 wherein a pair of adjacent pillars of the first light guide or the second light guide have refractive indices that alternate.
3. The rotation sensor of claim 1 wherein the photonic crystal structure of the first light guide or the second light guide has predefined geometric defects for guiding light in a particular range of wavelengths.
4. The rotation sensor of claim 1 wherein the light source produces collimated or coherent light.
5. The rotation sensor of claim 1, wherein the first light guide is adapted to allow sensing of the second beam at the introduction point of the first light guide.
6. The rotation sensor of claim 1 wherein the first light guide and second light guide are substantially in the form of a polygon.
7. The rotation sensor of claim 1 further comprising a transducer mounted at the introduction point of the first or second light guide to convert light intensity into a proportional electrical signal.
8. The rotation sensor of claim 1 further comprising a transducer mounted at the introduction point of the first or second light guide to convert light frequency or phase changes into an electrical signal.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for transmitting 10GE LAN signals over a transport system, comprising:
receiving a 10GE LAN signal from a client device;
converting the 10GE LAN signal to an intermediate form;
re-clocking the intermediate signal;
reconverting the intermediate form to a signal suitable for the transport system;
transferring the reconverted form of the 10GE LAN signal to the transport systems; and
monitoring the intermediate form with a monitoring device, wherein the monitoring device is a 10GE LAN media access controller.
2. The method of claim 1, comprising performing forward error correction on the intermediate form.
3. The method of claim 1, wherein the transferring includes transferring the 10GE LAN signal over a metro transport system.
4. The method of claim 1, wherein the transferring includes transferring the 10GE LAN signal over a long haul transport system.
5. The method of claim 1, wherein the transferring includes transferring the 10GE LAN signal over an ultra long haul transport system.
6. The method of claim 1, wherein the transferring includes transferring the 10GE LAN signal over an optical transport system.
7. The method of claim 1, wherein the transferring includes transferring the 10GE LAN signal over a fiber transport system.
8. The method of claim 1, comprising:
receiving the 10GE LAN signal from the transport system;
converting the 10GE LAN signal to a second intermediate signal;
recovering clock data from the second intermediate signal; and
recovering a data stream from the second intermediate signal.
9. The method of claim 8, wherein the transferring includes transferring the 10GE LAN signal over an inter-office transport system.
10. A method for transferring a 10GE LAN client signal from a transport system to a client system, comprising:
receiving the 10GE LAN client signal transmitted over the transport system;
converting the 10GE LAN client signal to an intermediate signal;
recovering clock data from the intermediate signal;
recovering a data stream from the intermediate signal;
reconverting the intermediate signal to the 10GE LAN client signal;
transferring the 10GE LAN client signal to a client system; and
monitoring the intermediate form with a monitoring device, wherein the monitoring device is a 10GE LAN media access controller.
11. The method of claim 10, wherein the received signal is recovered via forward error correction.
12. The method of claim 10, wherein the 10GE LAN client signal transferred over a metro transport system.
13. The method of claim 10, wherein the 10GE LAN client signal transferred over a long haul transport system.
14. The method of claim 10, wherein the 10GE LAN client signal is transferred over an ultra long haul transport system.
15. The method of claim 10, wherein the 10GE LAN client signal is transferred over an optical transport system.
16. The method of claim 10, wherein the transferring includes transferring the 10GE LAN client signal over a fiber transport system.
17. The method of claim 10, wherein the transferring includes transferring the 10GE LAN client signal over an inter-office transport system.
18. An architecture for transporting 10GE LAN signals comprising:
a first 10GE LAN transceiver;
a first transport system in communication with the first 10GE LAN transceiver;
a regenerator operationally connected to the first transport system, wherein the regenerator converts the 10GE LAN signal to an intermediate form;
a second transport system operationally connected to the regenerator;
a second 10GE transceiver operationally connected to the second transport system; and a microcontroller operationally connected to the first and second transceiver, the first and second transport system, and the regenerator, wherein the microcontroller controls and obtains performance monitoring data from the intermediate form signal.
19. The architecture of claim 18 wherein the transport system is unidirectional.
20. The architecture of claim 18 wherein the transport system is bi-directional.
21. The architecture of claim 18 further comprising a plurality of transponders wherein a first transponder is operationally connected to the first transport system;
a second transponder is operationally connected to the second transport system; and
the first and second transponders are operationally connected to a third transport system.
22. The architecture of claim 18 further comprising the first and second transceiver operationally connected to a combination of transport systems and transceivers in an alternating arrangement.
23. A computer system for regenerating 10GE LAN signals between transport systems, the computer system comprising:
a first line optics module for communicating with a line signal of a first 10GE LAN transport system;
a first multiplexerde-multiplexer coupled to the first line optics module, wherein the first multiplexerde-multiplexer converts the 10GE LAN signal to an intermediate form;
a second de-multiplexermultiplexer coupled to the first multiplexerde-multiplexer;
a second line optics module coupled to the second de-multiplexermultiplexer;
a second transport system line signal communicating with the second line optics module; and
a micro controller operationally connected to the first and second multiplexerde-multiplexers and the first and second line optics modules, wherein the micro controller controls and obtains performance monitoring data from the signal.
24. The computer system of claim 23 further comprising a 10GE LAN signal, wherein the 10GE LAN signal is transmitted at a standard LAN transmission rate.
25. The computer system of claim 23 further comprising the 10GE LAN signal being transmitted at a standard LAN transmission rate with the addition of forward error correction data.
26. The computer system of claim 23 further comprising a media access controller operationally connected to the 10GE LAN signal.
27. The computer system of claim 23 further comprising at least one forward error correcting device operationally connected to the first and second multiplexerdemultiplexers.
28. The computer system of claim 23 further comprising a transceiver for re-clocking the intermediate form.
29. The computer system of claim 28 wherein the transceiver reconverts the intermediate form to a signal suitable for the transport system.
30. The computer system of claim 28 wherein the transceiver transfers the reconverted form of the 10GE LAN signal to the transport system.