Photonic Link With Improved Dynamic Range
First Claim
1. A photonic transmitter for transmitting an optical signal to a photonic receiver in accordance with an input signal, the photonic transmitter including:
- a first signal path including a first photonic modulator for producing a first output optical signal modulated by the input signal;
a second signal path in parallel with the first signal path, the second signal path including a second modulator for producing a second output optical signal modulated by the input signal, wherein the relative gain of the first and second signal paths is different to provide first and second output optical signals having a relative gain difference.
1 Assignment
0 Petitions
Accused Products
Abstract
A photonic link system for transmitting and receiving an optical signal in accordance with an input signal is disclosed. The system includes a photonic transmitter and a photonic receiver. The photonic transmitter includes a first signal path including a first photonic modulator for producing a first output optical signal modulated by the input signal and a second signal path in parallel with the first path photonic path where the second signal path also includes a second modulator for producing a second output optical signal modulated by the input signal. The relative gain of the first and second signal paths is different to provide first and second output optical signals of different relative gain. The photonic receiver includes a first input to receive the first output optical signal from the photonic transmitter and a second input to receive the second output optical signal from the photonic transmitter. The photonic receiver further includes a switch for selectively switching between the first and second inputs in accordance with a measure of magnitude of one or both of the first and second input optical signals.
-
Citations
40 Claims
-
1. A photonic transmitter for transmitting an optical signal to a photonic receiver in accordance with an input signal, the photonic transmitter including:
-
a first signal path including a first photonic modulator for producing a first output optical signal modulated by the input signal; a second signal path in parallel with the first signal path, the second signal path including a second modulator for producing a second output optical signal modulated by the input signal, wherein the relative gain of the first and second signal paths is different to provide first and second output optical signals having a relative gain difference. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
- 10. A photonic receiver for receiving an optical signal, wherein the photonic receiver includes a first input to receive a first input optical signal and a second input to receive a second input optical signal of different relative gain, the photonic receiver including a switch for selectively switching between the first and second inputs in accordance with a measure of magnitude of one or both of the first and second input optical signals.
-
21. A photonic link system for transmitting and receiving an optical signal in accordance with an input signal, the system including a photonic transmitter and a photonic receiver, wherein the photonic transmitter includes:
-
a first signal path including a first photonic modulator for producing a first output optical signal modulated by the input signal; a second signal path in parallel with the first path photonic path, the second signal path including a second modulator for producing a second output optical signal modulated by the input signal, wherein the relative gain of the first and second signal paths is different to provide first and second output optical signals of different relative gain, and wherein the photonic receiver includes; a first input to receive the first output optical signal from the photonic transmitter; and a second input to receive the second output optical signal from the photonic transmitter, the photonic receiver including a switch for selectively switching between the first and second inputs in accordance with a measure of magnitude of one or both of the first and second input optical signals. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
-
-
37. A method for increasing the dynamic range of a photonic link between a photonic transmitter and a photonic receiver, the method including:
-
at the photonic transmitter; in a first signal path producing a first output optical signal modulated by an input signal; in a second signal path in parallel with and having a different gain to the first signal path, producing a second output optical signal with the input signal; and transmitting the first output optical signal and the second output optical signal; and
at the photonic receiver;selectively switching between the first output optical signal and the second output optical signal in accordance with a measure of magnitude of one or both of the first and second output optical signals. - View Dependent Claims (38)
-
-
39. A method for transmitting an optical signal in accordance with an input signal to a photonic receiver, the method including:
-
in a first signal path producing a first output optical signal modulated by the input signal; in a second signal path in parallel with and having a different gain to the first signal path, producing a second output optical signal with the input signal; and transmitting the first output optical signal and the second output optical signal.
-
-
40. A method for receiving an optical signal, the method including:
-
receiving a first input optical signal receiving a second input optical signal of different relative gain to the first input optical signal; and selectively switching between the first and second input optical signals in accordance with a measure of magnitude of one or both of the first and second input optical signals.
-
Specification