PATENT CLAIM ANALYSIS

Application Number: 16077437
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["372", "020000"]

Abstract:
A discrete wavelength tunable laser having an optical cavity which comprises: a reflective semiconductor optical amplifier (SOA); a demultiplexer (Demux) having a single input and a plurality of outputs, the Demux configured to receive the output of the SOA and to produce a plurality of fixed spectral passbands within the gain bandwidth of the SOA; one or more tunable distributed Bragg reflector(s) (DBR(s)) arranged to receive the outputs of the Demux, each tunable DBR configured to select a reflective spectral band within the gain bandwidth of the SOA upon application of a bias current; wherein the SOA forms the back end mirror of the optical cavity; the one or more tunable DBRs form the front end mirror of the optical cavity; and wherein the lasing channel of the discrete wavelength tunable laser is chosen by the overlap of the selected reflective spectral band of one of the one or more tunable DBRs with a fixed spectral passband of the Demux.

Claim (Index 9):
The discrete wavelength tunable laser of  claim 3 , wherein the Arrayed Waveguide Grating (AWG) configured to receive the output of the SOA and to produce a plurality of fixed spectral passbands within the gain bandwidth of the SOA is a plurality of AWGs including:\n a coarse tuning AWG in the form of a 1\u00d7P AWG, having one input which is optically coupled to the SOA and P outputs, the 1\u00d7P AWG configured to output a range of spectral passbands to each of its P respective outputs; a plurality of fine tuning AWGs, where each fine tuning AWG is a 1\u00d7M AWGs; the input of each of the 1\u00d7M AWG being optically coupled to one of the P respective outputs of the 1\u00d7P AWG; M output waveguides respectively coupled to the M outputs of each fine tuning AWG to give a total of M\u00d7P output waveguides from the 1\u00d7M AWGs; and a further AWG which acts as a multiplexer to multiplex the signals from the M\u00d7P respective output waveguides to produce a common output of the laser; wherein each of the M output waveguides of each of the fine tuning AWGs comprises a respective one of the one or more tunable DBRs.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 96.0
- Lexical Diversity: 2.41333
- Patent Class: 372.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14925924', '15488400', '15341691', '10267304', '15120861']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8577396520585612
- 35 USC 102 Novelty (BERT): 0.5448159783920565
- Combined Prediction Score: 0.8264472846919108
- Mean Citation Score: 355.63619400000016
- Max Citation Score: 396.05756
- Similarity Product: 289.25861570502764

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test