@BOOK{ iet:/content/books/cs/pbcs010e, author = {John Carroll}, author = {James Whiteaway}, author = {Dick Plumb}, keywords = {spontaneous emissions;distributed feedback semiconductor-diode lasers;optical energy exchange;optical design;optical loss;DFB laser;}, title = {Distributed Feedback Semiconductor Lasers}, publisher = {Institution of Engineering and Technology}, year = {1998}, series = {Materials, Circuits and Devices}, url = {https://digital-library.theiet.org/;jsessionid=1gkldvr5mdy6w.x-iet-live-01content/books/cs/pbcs010e} }