wavelength, nm - waveguide  width 400		420		430		440		450 nm
1250	2.64318	1250	2.67903	1250	2.69512	1250	2.71014	1250	2.72416	
1275	2.6089	1275	2.64634	1275	2.66316	1275	2.67885	1275	2.69351	
1300	2.57456	1300	2.61363	1300	2.63118	1300	2.64756	1300	2.66287	
1325	2.54018	1325	2.5809	1325	2.5992	1325	2.61628	1325	2.63224	
1350	2.50569	1350	2.54808	1350	2.56714	1350	2.58493	1350	2.60156	
1375	2.47118	1375	2.51525	1375	2.53507	1375	2.55359	1375	2.5709	
1400	2.43646	1400	2.48223	1400	2.50282	1400	2.52207	1400	2.54006	
1425	2.40167	1425	2.44913	1425	2.47051	1425	2.49049	1425	2.50918	
1450	2.36684	1450	2.41599	1450	2.43815	1450	2.45886	1450	2.47826	
1475	2.33189	1475	2.38271	1475	2.40565	1475	2.4271	1475	2.4472	
1500	2.29696	1500	2.34943	1500	2.37314	1500	2.39533	1500	2.41613	
1525	2.26188	1525	2.31595	1525	2.34043	1525	2.36336	1525	2.38486	
1550	2.2269	1550	2.28253	1550	2.30776	1550	2.33141	1550	2.35361	
1575	2.19197	1575	2.2491	1575	2.27506	1575	2.29942	1575	2.32231	
1600	2.15715	1600	2.21569	1600	2.24235	1600	2.26741	1600	2.29097	
1625	2.12251	1625	2.18236	1625	2.20969	1625	2.23541	1625	2.25962	
1650	2.0881	1650	2.14914	1650	2.1771	1650	2.20346	1650	2.2283