An approach to alignment and coupling between wedge-shaped fiber (WSF) and semiconductor multiple quantum well planar lightwave circuit (PLC) chip integrated with two-dimensional spot size converter (SSC) was presented. Using staircase concatenation method (SCM), the optimum coupling conditions were achieved for wedge-shaped fiber wedge angle, cylindrical endface lens curvature radius, semimajor axis of planar lightwave circuit elliptical field, aspect ratio of planar lightwave circuit elliptical field, misalignment tolerance between wedge-shaped fiber and planar lightwave circuit to be 45°, 2.5 μm, 3.5 μm, 5 μ, 5.5 μm respectively. The output spot of wedge-shaped fiber was experimentally characterized by inverse deducing method (IDM). Compared with the staircase concatenation method computation, the error for the semimajor axis was 3.125%, while that for the semiminor axis was 0.8%. 1.55 μm signal laser was injected into planar lightwave circuit from SMF, tapered and lensed fiber (TLF), wedge-shaped fiber separately as planar lightwave circuit input fiber with the same SMF as output fiber. The coupling efficiency for wedge-shaped fiber was 24.827 dB and 16.22, dB higher than that of SMF and TLF, and therefore an experimental prototype of wedge-shaped fiber-planar lightwave circuit-SMF coupling linkage was established for pigtailed planar lightwave circuit packaging technique.