Segmented modulator for high-speed opto-electronics
First Claim
1. An optical modulator suitable for application in a transmitter, said optical modulator comprising:
- a first modulator segment;
a second modulator segment, said first and second modulator segments comprising an optical signal path for an optical signal; and
an electrical signal path capable of receiving and carrying a modulation signal, wherein the modulation signal is applied to the optical signal at said first and second modulation segments to generate a modulated optical signal.
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Abstract
An optical modulator includes first and second modulator segments. The first and second modulator segments form an optical signal path for an optical signal. The optical modulator also includes an electrical signal path capable of receiving and carrying a modulation signal, which is applied to the optical signal at the first and second modulation segments to generate a modulated optical signal. An inductive element may be disposed between electrical inputs to the first and second modulator segments. The optical modulator may be an electro-absorption modulator (EAM). The inductive element may be an inductor or a transmission line segment.
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Citations
24 Claims
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1. An optical modulator suitable for application in a transmitter, said optical modulator comprising:
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a first modulator segment;
a second modulator segment, said first and second modulator segments comprising an optical signal path for an optical signal; and
an electrical signal path capable of receiving and carrying a modulation signal, wherein the modulation signal is applied to the optical signal at said first and second modulation segments to generate a modulated optical signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A transmitter comprising:
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an optical source capable of generating an optical signal;
an optical modulator capable of receiving the optical signal and a modulation signal, applying the modulation signal to the optical signal to generate a modulated optical signal; and
a data modulator capable of receiving the modulated optical signal and a data signal, and applying the data signal to the modulated optical signal to generate an optical data signal, wherein at least one of the optical modulator and the data modulator comprises;
a first modulator segment; and
a second modulator segment, said first and second modulator segments comprising an optical signal path for the optical signal or the modulated optical signal, respectively, wherein the modulation signal or the data signal is applied, respectively, to the optical signal or the modulated optical signal at said first and second modulation segments to generate the modulated optical signal or the optical data signal, respectively.
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21. An optical transmission system comprising:
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a transmitter capable of generating and transmitting an optical data signal;
a transmission medium over which the optical data signal can be transmitted; and
a receiver capable of receiving the optical data signal, wherein the transmitter comprises an optical modulator comprising;
a first modulator segment; and
a second modulator segment, said first and second modulator segments comprising an optical signal path for an optical signal, wherein the modulation signal is applied to the optical signal at said first and second modulation segments to generate the optical data signal.
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22. A method of improving a frequency characteristic of an optical modulator comprising;
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dividing the optical modulator into a plurality of modulator segments; and
disposing an inductive element between electrical inputs of at least two of the modulator segments. - View Dependent Claims (23, 24)
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Specification