Table 1 The actual parameters fabrication tolerances with the period of 780 nm and duty cycle of 0.65 under Littrow mounting.
From: Two-port connecting-layer-based sandwiched grating by a polarization-independent design
h g (μm) | h c (μm) | \({{\boldsymbol{\eta }}}_{{\bf{0}}}^{{\bf{T}}{\bf{E}}}{\boldsymbol{(}}{\boldsymbol{ \% }}{\boldsymbol{)}}\) | \({{\boldsymbol{\eta }}}_{{\boldsymbol{-}}{\bf{1}}}^{{\bf{T}}{\bf{E}}}{\boldsymbol{(}}{\boldsymbol{ \% }}{\boldsymbol{)}}\) | \({{\boldsymbol{\eta }}}_{{\bf{0}}}^{{\bf{T}}{\bf{M}}}({\boldsymbol{ \% }}{\boldsymbol{)}}\) | \({{\boldsymbol{\eta }}}_{{\boldsymbol{-}}{\bf{1}}}^{{\bf{T}}{\bf{M}}}{\boldsymbol{(}}{\boldsymbol{ \% }}{\boldsymbol{)}}\) |
|---|---|---|---|---|---|
0.94 | 0.12 | 48.6 | 48.8 | 48.2 | 50.0 |
0.94 | 0.13 | 48.9 | 48.6 | 48.6 | 49.4 |
0.94 | 0.14 | 49.2 | 48.3 | 49.0 | 49.1 |
0.94 | 0.15 | 49.5 | 48.0 | 49.3 | 48.7 |
0.95 | 0.14 | 48.4 | 49.1 | 48.2 | 50.0 |
0.95 | 0.15 | 48.6 | 48.8 | 48.5 | 49.5 |
0.95 | 0.16 | 48.7 | 48.5 | 48.7 | 49.0 |
0.95 | 0.17 | 48.7 | 48.2 | 48.8 | 48.5 |
