@other{https://resolver.caltech.edu/CaltechETD:etd-12212006-102347,
    title = "Application of fiber amplifiers to fiber lasers and terahertz spectroscopy",
    year = "1994",
    url = "https://resolver.caltech.edu/CaltechETD:etd-12212006-102347",
    id = "record",
    doi = "10.7907/ZK03-KN91"
}