An integrated single-shot spectrometer with large bandwidth-resolution ratio and wide operation temperature range

PhotoniX

Table 1 Comparison of various single-shot spectrometers realized on silicon photonics platform

Ref	Spectrometer category	Structure	BRR	Physical channel	Insertion loss
[15]	Conventional spectrometer	Arrayed Waveguide Grating	100	100	Low
[21]		Ring resonators	84	84	Moderate
[20]		Echelle grating	120	121	Low
[29]	Computational spectrometer	Completely disorder chip	33	25	Very high
[34]		Tailored disorder chip	120	8	High
[35]		Spiral multimode waveguide	200	40	Low
[36]		Stratified waveguide filter	400	32	Moderate
Our work		Multi-point self-coupled waveguides	1000	64	Very low