# US 10,122,151 B2 · Optical module

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- Number: US 10,122,151 B2
- Document ID: US10122151B2
- Status: Granted
- Kind: B2
- Application number: 15/087,261
- Filed: 2016-03-31
- Published: 2017-03-02
- Granted: 2018-11-06
- Earliest claimed: 2015-06-30
- Assignees: Hisense Broadband Multimedia Technologies Co., Ltd.; Hisense USA Corporation; Hisense International Co., Ltd.
- Applicants: Hisense Broadband Multimedia Technologies, Ltd.; Hisense USA Corp.; Hisense International Co., Ltd.
- Inventors: Hongping Yan; Dengshan Xue; Qisheng Zhao; Ming Li
- Web page: https://patentgrep.com/patent/US10122151B2

## CPC

- H01S 5/125: Distributed Bragg reflector [DBR] lasers
- H01S 5/0427: {for applying modulation to the laser}
- H01S 5/06256: {with DBR-structure}
- H04B 10/503: {Laser transmitters}
- H04B 10/504: {using direct modulation}
- H04B 10/541: {Digital intensity or amplitude modulation}
- H04B 10/572: Wavelength control
- H01S: DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H04B: TRANSMISSION

## Abstract

An optical module includes a laser transmitter driver chip, a Distributed Bragg reflection (DBR) raster, a laser transmitter, a first resistor, a first capacitor, a second resistor, a second capacitor and a power source. The first resistor is connected between a power source and a differential signal output positive terminal of the laser transmitter; the first capacitor is connected between the differential signal output positive terminal and the a positive terminal of the laser transmitter; the second resistor is connected between the power source and a differential signal output negative terminal of the laser transmitter driver chip; the second capacitor is connected between the differential signal output negative terminal and a negative terminal of the laser transmitter; and the negative terminal of the laser transmitter and a negative terminal of the DBR raster are grounded.

## Claims

### Claim 1

An optical module, comprising:
a laser transmitter driver chip including a first terminal and a second terminal;
a laser transmitter including a third terminal and a fourth terminal;
a power source;
a first capacitor connected between the first terminal and the third terminal; and
a Distributed Bragg reflection (DBR) raster including a fifth terminal.

### Claim 2 (depends on 1)

The optical module of claim 1, wherein the first terminal is a differential signal output positive terminal of the laser transmitter driver chip; the second terminal is a differential signal output negative terminal of the laser transmitter driver chip; the third terminal is a positive terminal of the laser transmitter; and the fourth terminal is a negative terminal of the laser transmitter.

### Claim 3 (depends on 2)

The optical module of claim 2, wherein the first terminal and the second terminal are configured to output a differential signal.

### Claim 4 (depends on 1)

The optical module of claim 1, wherein the fourth terminal and the fifth terminal are grounded.

### Claim 5 (depends on 1)

The optical module of claim 1, further comprising a first resistor connected between the power source and the first terminal.

### Claim 6 (depends on 1)

The optical module of claim 1, further comprising a connecting resistor connected between the first capacitor and the first terminal.

### Claim 7 (depends on 6)

The optical module of claim 6, wherein a resistance value of the connecting resistor is between 0-15 ohm.

### Claim 8 (depends on 1)

The optical module of claim 1, further comprising a high frequency signal filter circuit including a connecting resistor connected to a second capacitor in series connection, wherein the high frequency signal filter circuit is connected between the third terminal and a ground.

### Claim 9 (depends on 8)

The optical module of claim 8, wherein a resistance value of the connecting resistor is 10-150 ohm.

### Claim 10 (depends on 8)

The optical module of claim 8, wherein a capacitance of the second capacitor is 20-300 pf.

### Claim 11 (depends on 1)

The optical module of claim 1, further comprising a connecting resistor connected between the power source and the second terminal.

### Claim 12 (depends on 1)

The optical module of claim 1, further comprising a second capacitor connected between the second terminal and the fourth terminal.

### Claim 13 (depends on 12)

The optical module of claim 12, further comprising a connecting resistor connected between the second capacitor and the second terminal.

### Claim 14 (depends on 13)

The optical module of claim 13, wherein a resistance value of the connecting resistor is 0-15 ohm.

### Claim 15 (depends on 1)

The optical module of claim 1, further comprising high frequency signal filter circuit including a connecting resistor connected to a second capacitor in series connection, wherein the high frequency signal filter circuit is connected between the fourth terminal and a ground.

### Claim 16 (depends on 15)

The optical module of claim 15, wherein a resistance value of the connecting resistor is 10-150 ohm.

### Claim 17 (depends on 15)

The optical module of claim 15, wherein a capacitance of the second capacitor is 20-300 pf.