PATENT CLAIM ANALYSIS

Application Number: 16073689
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["372", "050120"]

Abstract:
The present invention provides an optical transmitter and a light intensity monitoring method that provide reliable APC feedback for a semiconductor laser equipped with an SOA. The optical transmitter includes an SOA integrated EA-DFB having a DFB laser, an EA modulator connected to the DFB laser, and an SOA connected to the EA modulator. In the structure of the optical transmitter, a light detector part is disposed forward of the output end side of an SOA part. The light detector part changes part of an output light beam from the SOA part into an electric current and detects light, while guiding the remaining part of the output light beam to a waveguide. With the light detector part disposed forward for the SOA part, it is possible to feed back the output result from the SOA part. Hence, good APC is possible.

Claim (Index 7):
An optical transmitter comprising:\n a plurality of SOA integrated EA-DFBs, wherein each SOA integrated EA-DFB includes a DFB laser, an EA modulator connected to the DFB laser, an SOA connected to the EA modulator, and a first light detector for monitoring a signal light beam emitted from the SOA with different oscillation wavelengths of the respective DFB lasers; an optical multiplexer for multiplexing a plurality of signal light beams emitted from the SOAs of the plurality of SOA integrated EA-DFBs to output a resultant wavelength-multiplexed light beam; and a drive device connected to the DFB laser and the SOA of the each SOA integrated EA-DFB by a single control terminal, for controlling a drive current in accordance with light intensity detected by the first light detector respectively.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 95.0
- Lexical Diversity: 2.31818
- Patent Class: 372.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15547886', '11766693', '10317935', '11773938', '10267331']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8333167380648476
- 35 USC 102 Novelty (BERT): 0.5053177524256097
- Combined Prediction Score: 0.8005168395009239
- Mean Citation Score: 280.961704
- Max Citation Score: 286.34402
- Similarity Product: 233.2865233160472

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test