@article{Fan2005,
  author = {Fan, T. Y.},
  title = {Laser beam combining for high-power, high-radiance sources},
  journal = {IEEE Journal of Selected Topics in Quantum Electronics},
  year = {2005},
  volume = {11},
  number = {3},
  pages = {567--577},
  doi = {10.1109/JSTQE.2005.850241}
}

@article{Stachowiak2018,
  author = {Stachowiak, Dorota},
  title = {High-Power Passive Fiber Components for All-Fiber Lasers and Amplifiers Application---Design and Fabrication},
  journal = {Photonics},
  year = {2018},
  volume = {5},
  number = {4},
  pages = {38},
  doi = {10.3390/photonics5040038},
  url = {https://www.mdpi.com/2304-6732/5/4/38}
}

@article{Birks2015,
  author = {Birks, T. A. and Gris-S{\'a}nchez, I. and Yerolatsitis, S. and Leon-Saval, S. G. and Thomson, R. R.},
  title = {The photonic lantern},
  journal = {Advances in Optics and Photonics},
  year = {2015},
  volume = {7},
  number = {2},
  pages = {107--167},
  doi = {10.1364/AOP.7.000107},
  eprint = {1503.02837},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1503.02837}
}

@article{SmitVanDam1996,
  author = {Smit, M. K. and van Dam, C.},
  title = {{PHASAR}-based {WDM}-devices: principles, design and applications},
  journal = {IEEE Journal of Selected Topics in Quantum Electronics},
  year = {1996},
  volume = {2},
  number = {2},
  pages = {236--250},
  doi = {10.1109/2944.577370},
  url = {https://research.tue.nl/en/publications/phasar-based-wdm-devices-principles-design-and-applications/}
}

@article{Singh1999,
  author = {Singh, B. R.},
  title = {Silica Based Planar Lightwave Circuits: Status, Perspective and Future},
  journal = {IETE Journal of Research},
  year = {1999},
  volume = {45},
  number = {5-6},
  pages = {345--353},
  doi = {10.1080/03772063.1999.11416120}
}

@article{Lei2020,
  author = {Lei, Chengmin and Li, Zhixian and Zhang, Hui and Chen, Zilun and Hou, Jing},
  title = {Taper-fused side pump combiner for all-fiber lasers and amplifiers: A review},
  journal = {Optics \& Laser Technology},
  year = {2020},
  volume = {130},
  pages = {106353},
  doi = {10.1016/j.optlastec.2020.106353}
}

@article{Agarwal1987,
  author = {Agarwal, Arun K.},
  title = {Review of optical fiber couplers},
  journal = {Fiber and Integrated Optics},
  year = {1987},
  volume = {6},
  number = {1},
  pages = {27--53},
  doi = {10.1080/01468038708219344}
}

@article{Marchetti2019,
  author = {Marchetti, Riccardo and Lacava, Cosimo and Carroll, Lee and Gradkowski, Kamil and Minzioni, Paolo},
  title = {Coupling strategies for silicon photonics integrated chips [Invited]},
  journal = {Photonics Research},
  year = {2019},
  volume = {7},
  number = {2},
  pages = {201--239},
  doi = {10.1364/PRJ.7.000201}
}

@article{KawasakiHill1977,
  author = {Kawasaki, B. S. and Hill, K. O.},
  title = {Low-loss access coupler for multimode optical fiber distribution networks},
  journal = {Applied Optics},
  year = {1977},
  volume = {16},
  number = {7},
  pages = {1794--1795},
  doi = {10.1364/AO.16.001794}
}

@article{Kawasaki1981,
  author = {Kawasaki, B. S. and Hill, K. O. and Lamont, R. G.},
  title = {Biconical-taper single-mode fiber coupler},
  journal = {Optics Letters},
  year = {1981},
  volume = {6},
  number = {7},
  pages = {327--328},
  doi = {10.1364/OL.6.000327}
}

@inproceedings{Hibino1994,
  author = {Hibino, Y. and Hanawa, F. and Takato, N. and Nakagome, H. and Inoue, Y. and Miya, T. and Yamaguchi, M.},
  title = {Silica-based {PLC} splitters which satisfy reliability requirements for more than 5000 hours},
  booktitle = {Conference on Optical Fiber Communication},
  series = {1994 OSA Technical Digest Series},
  volume = {4},
  pages = {PD7},
  publisher = {Optical Society of America},
  year = {1994},
  doi = {10.1364/OFC.1994.PD7}
}

@article{Smit1988,
  author = {Smit, M. K.},
  title = {New focusing and dispersive planar component based on an optical phased array},
  journal = {Electronics Letters},
  year = {1988},
  volume = {24},
  number = {7},
  pages = {385--386},
  doi = {10.1049/el:19880260},
  url = {https://pure.tue.nl/ws/files/4438613/590292.pdf}
}

@article{Kozlov1999,
  author = {Kozlov, V. A. and Hern{\'a}ndez-Cordero, J. and Morse, T. F.},
  title = {All-fiber coherent beam combining of fiber lasers},
  journal = {Optics Letters},
  year = {1999},
  volume = {24},
  number = {24},
  pages = {1814--1816},
  doi = {10.1364/OL.24.001814}
}

@article{LeonSaval2005,
  author = {Leon-Saval, S. G. and Birks, T. A. and Bland-Hawthorn, J. and Englund, M.},
  title = {Multimode fiber devices with single-mode performance},
  journal = {Optics Letters},
  year = {2005},
  volume = {30},
  number = {19},
  pages = {2545--2547},
  doi = {10.1364/OL.30.002545}
}

@article{Morizur2010,
  author = {Morizur, Jean-Fran{\c c}ois and Nicholls, Lachlan and Jian, Pu and Armstrong, Seiji and Treps, Nicolas and Hage, Boris and Hsu, Magnus and Bowen, Warwick and Janousek, Jiri and Bachor, Hans-A.},
  title = {Programmable unitary spatial mode manipulation},
  journal = {Journal of the Optical Society of America A},
  year = {2010},
  volume = {27},
  number = {11},
  pages = {2524--2531},
  doi = {10.1364/JOSAA.27.002524},
  eprint = {1005.3366},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1005.3366}
}